COUNTERPART NO.:
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118
TOTAL PAGES:
ANNEX 1
TO INVITATION TO SUBMIT A BID
TECHNICAL CONDITIONS
FOR THE PERFORMANCE OF THE WORK
DESULFURIZATION AND DEDUSTING
OF BOILERS K14, K13, K12
Part 02
Technical Report
2012-11-09
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
PAGE No.:
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
2
TOTAL PAGES:
118
Table of Contents:
1.
INTRODUCTION ................................................................................................................................................... 6
2.
EXISTING STATE AND CONDITIONS FOR CONSTRUCTION .................................................................................... 6
2.1.
2.2.
2.3.
3.
BASIC DESCRIPTION OF EXISTING STATE........................................................................................................................ 6
ENGINEERING AND LAYOUT DESIGN CONDITIONS ........................................................................................................... 8
CONSTRUCTION CONDITIONS ..................................................................................................................................... 9
WORK CHARACTERISTICS .................................................................................................................................... 9
3.1. WORK OBJECTIVE .................................................................................................................................................... 9
3.2. WORK SUBJECT ....................................................................................................................................................... 9
3.3. SCOPE, STRUCTURE, BASIC TECHNICAL DESCRIPTION OF THE WORK AND REQUIREMENTS FOR FUNCTIONS .............................. 10
3.3.1.
Basic Structure of the Work in Operating Sets and Building Objects: ....................................................... 11
3.3.2.
Description of Operating Sets and Building Objects .................................................................................. 12
3.3.2.1
Description of Operating Sets .................................................................................................................................13
3.3.2.1.1 PS 10.01. Relocations ........................................................................................................................................13
3.3.2.1.2 PS 10.02 Desulfurization Unit ..........................................................................................................................13
3.3.2.1.3 PS 10.03 Fabric Filter .........................................................................................................................................16
3.3.2.1.4 PS 10.04 Booster Induced-Draft Fan ................................................................................................................20
3.3.2.1.5 PS 10.05 Flue Gas Ducts ....................................................................................................................................22
3.3.2.1.5.1 PS 10.06 High-Pressure Air Station ...........................................................................................................25
3.3.2.1.5.2 DPS 10.06.01 Compressor Station .............................................................................................................26
3.3.2.1.5.3 DPS 10.06.02 Compressed Air Treatment ..................................................................................................30
3.3.2.1.5.4 DPS 10.06.03 Compressor Station Air Conditioning System .....................................................................31
3.3.2.1.5.5 PS 10.07 Low-Pressure Air Station .............................................................................................................32
3.3.2.1.6 PS 10.08 Outdoor Distribution Piping................................................................................................................34
3.3.2.1.6.1 DPS 10.08.01 – Process Water and Rinsing Water Piping ..........................................................................35
3.3.2.1.6.2 DPS 10.08.02 – Drinking Water Piping .......................................................................................................35
3.3.2.1.6.3 DPS 10.08.03 – Heating Water and Return Water Piping ..........................................................................36
3.3.2.1.6.4 DPS 10.08.04 – Process Air Piping ..............................................................................................................36
3.3.2.1.6.5 DPS 10.08.05 – Instrument Air Piping ........................................................................................................36
3.3.2.1.7 PS 10.09 Sorbent Management System ............................................................................................................37
3.3.2.1.7.1 DPS 10.09.01 – Main Sorbent (CaO) Storage Silo .......................................................................................37
3.3.2.1.7.2 DPS 10.09.02 Sorbent Conveyance ...........................................................................................................40
3.3.2.1.7.3 DPS 10.09.03 – Sorbent Treatment Plant and Ca(OH)2 Day Silo ................................................................41
3.3.2.1.8 PS 10.10 Desulfurization Product Management System ...................................................................................43
3.3.2.1.8.1 DPS 10.10.01 – Desulfurization Product Conveyance ................................................................................43
3.3.2.1.8.2 DPS 10.10.02 – Desulfurization Product Storage Silo.................................................................................44
3.3.2.1.9 PS 10.11 Industrial Vacuum Cleaner .................................................................................................................47
3.3.2.1.10 PS 10.12 Heavy-Current Equipment and Distribution Lines ............................................................................49
3.3.2.1.10.1 DPS 10.12.01 Transformers .....................................................................................................................49
3.3.2.1.10.2 DPS 10.12.02 6 kV Substation (s) ............................................................................................................51
3.3.2.1.10.3 DPS 10.12.03 Switchgears .......................................................................................................................56
3.3.2.1.10.4 DPS 10.12.04 Cabling and Cable Lines .....................................................................................................58
3.3.2.1.10.5 DPS 10.12.05 Pipe Grounding ..................................................................................................................59
3.3.2.1.11 PS 10.13 Control System .................................................................................................................................59
3.3.2.1.11.1 DPS 10.13.01 Visualization of New Technology Equipment.....................................................................60
3.3.2.1.11.2 DPS 10.13.02 Power Supply for Control System, IN/OUT Modules .........................................................60
3.3.2.1.11.3 DPS 10.13.03 Communication and Data Archiving ..................................................................................61
3.3.2.1.12 PS 10.14 Camera System .................................................................................................................................61
3.3.2.2
Description of Building Objects ...............................................................................................................................62
3.3.2.2.1 SO 10.101 Demolitions ......................................................................................................................................63
3.3.2.2.2 SO 10.102 Desulfurization Building ...................................................................................................................63
3.3.2.2.3 SO 10.103 Civil Engineering Structures of Outdoor Process Lines and Equipment ..........................................66
3.3.2.2.3.1 DSO 10.103.01 Civil Engineering Structures for Booster Induced-Draft Fan .............................................67
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3.3.2.2.3.2 DSO 10.103.02 Foundations for New Flue Gas Ducts ...............................................................................67
3.3.2.2.3.3 DSO 10.103.03 Civil Engineering Structures for New Outdoor Distribution Piping ...................................67
3.3.2.2.3.4 DSO 10.103.04 Civil Engineering Structures for Sorbent Management System........................................67
3.3.2.2.3.5 DSO 10.103.05 Civil Engineering Structures for Desulfurization Product Management System ...............67
3.3.2.2.4 SO 10.104 Modifications to Existing Stacks .....................................................................................................68
3.3.2.2.5 SO 10.105 Waste Disposal .................................................................................................................................68
3.3.2.3
Description of Engineering Objects .........................................................................................................................69
3.3.2.3.1 SO 10.201 Construction Work for Relocations ..................................................................................................69
3.3.2.3.2 SO 10.202 Pipe and Conveyance Bridges ..........................................................................................................69
3.3.2.3.3 SO 10.203 Fire Main and Firefighting Equipment .............................................................................................69
3.3.2.3.4 SO 10.204 Stormwater Sewerage......................................................................................................................69
3.3.2.3.5 SO 10.205 Sanitary Sewerage............................................................................................................................70
3.3.2.3.6 SO 10.206 Roads and Paved Ways ....................................................................................................................70
3.3.2.3.7 SO 10.207 Outdoor Lighting ..............................................................................................................................71
3.4.
4.
DELIVERY BOUNDARIES AND SPECIFICATION OF WORK CONNECTION POINTS..................................................................... 72
INPUTS FOR EQUIPMENT DESIGN AND REQUIRED WORK PARAMETERS ........................................................... 75
4.1. INPUTS FOR EQUIPMENT DESIGN .............................................................................................................................. 75
4.1.1.
Fuel Basis ................................................................................................................................................... 75
4.1.2.
Equipment Sizing – Specified Parameters and Requirements ................................................................... 77
4.1.2.1
4.1.2.2
4.1.2.3
4.1.2.4
4.1.2.5
4.1.2.6
4.1.2.7
Desulfurization Unit, Fabric Filter, Booster Induced-Draft Fan ...............................................................................77
Sorbent ...................................................................................................................................................................78
Compressed Air for Desulfurization Technology .....................................................................................................78
Main Sorbent Storage Silo ......................................................................................................................................79
Ca(OH)2 Day Silo ......................................................................................................................................................79
Final Desulfurization Product Silo ...........................................................................................................................79
Process Water for Desulfurization ..........................................................................................................................79
5.
REQUIREMENTS FOR CONTENT AND FORM OF TECHNICAL PART OF THE BID ................................................... 80
6.
PROVISION OF INPUTS ...................................................................................................................................... 90
7.
ANNEXES TO TECHNICAL REPORT ...................................................................................................................... 90
7.1. DESCRIPTION OF SELECTED COMPONENTS OF EXISTING STATE ........................................................................................ 90
7.1.1.
Expected Basic Parameters of Boilers K14÷K12 after Reconstruction into Dry-Bottom Boiler.................. 90
7.1.2.
Outside Flue Gas Ducts of Boilers K14÷K12 – Existing State ..................................................................... 91
7.1.3.
Electrostatic Precipitators of Boilers K14÷K12 .......................................................................................... 91
7.1.4.
Induced-Draft Fans of Boilers K14÷K13 ..................................................................................................... 92
7.1.5.
Emission Monitoring ................................................................................................................................. 93
7.1.6.
Stacks ........................................................................................................................................................ 94
7.1.6.1
7.1.6.2
Stack 3 .....................................................................................................................................................................94
Stack 2 .....................................................................................................................................................................94
7.1.7.
Fly Ash Silos ............................................................................................................................................... 94
7.2. WORK IMPLEMENTATION CONDITIONS....................................................................................................................... 95
7.3. COMMON GENERAL REQUIREMENTS FOR SCOPE AND IMPLEMENTATION OF OPERATING SETS AND BUILDING OBJECTS ............. 97
7.3.1.
General Requirements for Operating Sets................................................................................................. 97
7.3.2.
General Requirements for Building Objects .............................................................................................. 99
7.4. STANDARDIZATION AND TYPIFICATION...................................................................................................................... 101
7.4.1.
Technical Standards, Work Performance ................................................................................................ 101
7.4.2.
Standardization ....................................................................................................................................... 102
7.4.3.
Requirements for Mechanical Technology Part ...................................................................................... 102
7.4.3.1
7.4.3.2
7.4.3.3
7.4.3.4
7.4.3.5
7.4.3.6
Center:
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Piping and Accessories ..........................................................................................................................................102
Fittings ..................................................................................................................................................................102
Flue Gas Ducts.......................................................................................................................................................102
Measuring Points ..................................................................................................................................................103
Structural Materials and Internal Anticorrosive Protection ..................................................................................103
Steel Structures and Fitting Products ....................................................................................................................104
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Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
7.4.3.7
7.4.3.8
7.4.3.9
7.4.3.10
7.4.3.11
7.4.3.12
7.4.3.13
7.4.3.14
7.4.4.
7.4.4.1
7.4.4.2
7.4.4.3
7.4.4.4
7.4.4.5
7.4.4.6
7.4.4.7
7.4.5.
7.4.5.1
7.4.5.2
7.4.5.3
7.4.5.4
7.4.5.5
7.4.5.6
7.4.5.7
7.4.5.8
7.4.6.
7.4.6.1
7.4.6.2
7.4.6.3
7.4.6.4
4
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118
Paint Systems ........................................................................................................................................................104
Insulations .............................................................................................................................................................105
Assembly and Disassembly ...................................................................................................................................106
Refurbishment ..................................................................................................................................................106
Welding ............................................................................................................................................................106
List of Equipment ..............................................................................................................................................106
Main Data on Equipment..................................................................................................................................107
Schematic Drawings .........................................................................................................................................107
Requirements for Heavy-Current Equipment .......................................................................................... 107
Requirements for Equipment from the Perspective of AC, DC Supply ..................................................................107
Requirements for Switchgears, Terminal and Control Boxes ................................................................................108
Instrumentation of Switchgears, Terminal and Control Boxes .............................................................................108
Requirements for Motors .....................................................................................................................................109
Requirements for Frequency Converters ..............................................................................................................109
Control System Links to Heavy-Current Equipment ..............................................................................................109
Cabling and Cable Trays ........................................................................................................................................110
Requirements for ACS and I & CS ............................................................................................................ 110
Field Instrumentation ...........................................................................................................................................110
Servomotors of Electrically Controlled Fittings .....................................................................................................111
Cabling and Cable Trays ........................................................................................................................................111
Requirements for Switchgears, Terminal and Control Boxes ................................................................................112
Instrumentation of Switchgears, Terminal and Control Boxes .............................................................................112
ACS, Electrical System and I & CS Link Design .......................................................................................................113
Communicators and Controls ...............................................................................................................................114
Obligations of Foreign Organizations under Metrology Rules of DALKIA ČESKÁ REPUBLIKA................................115
Requirements for Civil Engineering Part.................................................................................................. 115
Concrete and Masonry Structures ........................................................................................................................115
Plastering and Painting .........................................................................................................................................115
Paint System .........................................................................................................................................................116
Steel Structures .....................................................................................................................................................116
7.4.7.
Requirements for Equipment Operation ................................................................................................. 116
7.5. EXPECTED SORBENT PARAMETERS FOR GUARANTEE TESTING ....................................................................................... 117
7.6. OPERATING SET AND BUILDING OBJECT CODING SYSTEM............................................................................................. 117
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TOTAL PAGES:
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List of Acronyms and Abbreviations Used:
Ar
ACS
ČSN
DPS
DSO
EP (EO)
ETB
I&CS
LP
OKD
OS
PS
Qr
R6
CS
SO
Sr
Srm
Vdaf
Wr
Center:
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Ash Content in Raw Sample
Automated Control System
Czech National Standard
Individual Operating Set
Individual Building Object
electrostatic precipitator
Třebovice Power Plant
Instrumentation and Control System
low-pressure
Ostravsko-karvinské doly, a.s. (Ostrava-Karviná Mines, joint-stock company)
Operator Station
Operating Set
Heating Value
6,000 V AC Substation
Control System
Building Object
Sulfur Content in Raw Sample
Specific Sulfur Content
Volatile Combustible Content
Water Content in Raw Sample
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1.
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INTRODUCTION
In connection with the requirements set out in the Directive of the European Parliament and Council No.
2010/75/EU dated November 24, 2010 on industrial emissions (Industrial Emission Directive - New IPPC),
Dalkia ČR a.s. is preparing measures to reduce SO2 and solid particle concentrations in Boilers K14, K13 and
K12 in the Třebovice Power Plant to the values proposed in the said Directive. For this purpose,
desulfurization units shall be built downstream of Boilers K14, K13 and K12.
The subject of the tender process is the construction of a desulfurization unit for Boiler K14 with an
option for the construction of desulfurization units also for Boilers K13 and K12.
If the technical part of the tender documentation includes requirements for or references to business names
and designation of products, performance, materials and services of a specific contractor, any such
designation is only provided to specify and describe the technical parameters and engineering design in
greater detail. The Employer also allows using other designs or products similar as to quality and technical
parameters provided that the required reliability and safety are complied with.
2.
EXISTING STATE AND CONDITIONS FOR CONSTRUCTION
2.1.
Basic Description of Existing State
Boiler K14 is part of the Třebovice Power Plant production unit designated as ETB II. This production unit
currently comprises three coal-fired steam boilers K14, K13 and K12, each with the same thermal output and
each provided with a wet-bottom furnace. Downstream of each of the boilers, there are (i) an electrostatic
precipitator in the outdoor area of the boiler system, where dust is removed from flue gases and (ii) an
induced-draft fan (“ID fan”) for overcoming pressure drops in the boiler, electrostatic precipitator, flue gas duct
and stack. The ID fans maintain under-pressure in the boiler combustion chambers. Flue gases from Boilers
K14 and K13 are driven to Stack 3. Flue gases from Boiler K12 are driven to Stack 2. Boilers K14 and K13
include (i) equipment for reducing NOx emissions by means of the SNCR method and (ii) equipment for a
temporary reduction of SO2 emissions. The SATAMIN denitrification agent (a 40% urea solution) is used to
reduce NOx emissions. The BICAR (NaHCO3) sorbent is used to reduce SO2 emissions. The K12 Boiler flue
gases are not currently desulfurized.
During the next Phase of the environmental upgrading, the boilers shall be reconstructed into dry-bottom
boilers. At Boilers K14 and K13, the SNCR system shall be preserved, and at K12 Boiler, the SNCR system
shall be newly installed. After the desulfurization unit is installed at Boilers K14 and K13, the existing
desulfurization system shall be removed.
Behind the electrostatic precipitators and ID fans and along the fuel yard, there are a Railway Siding Track 6
and a paved way.
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Fig. 1 Simplified Block Diagram of Existing State:
EO
EO
EO
EO
EO
K1
K2
K3
K4
K5
K12
K13
K14
ČU
ČU
ETB III
ETB I
ČU
EO
ČU
EO
ČU
EO
ČU
K3
ČU
K2
ČU
K1
ETB II
Fig. 2 Aerial Photo:
K14 EP
K13 EP
Stack 3
K12 EP
Stack 2
Area for building the K14÷K12 Boiler
desulfurization units on the coal yard
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2.2.
8
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Engineering and Layout Design Conditions
The subject of the work shall be the construction of desulfurization units and related process equipment for the
K14÷K12 Boiler desulfurization. From the layout perspective, the completed work shall be located in a
specified area of the coal yard, i.e., outdoor area of the K14÷K12 Boiler system, including Stacks 3 and 2, and
area of the existing fly ash silos. The desulfurization units themselves and the tightly situated process
equipment shall be situated on the coal yard, in the area behind Boilers K14÷K12 (see Fig. 2) demarcated
with:
 the south-eastern edge of the garage and store building in the southeast, (this building shall be
demolished and the vacated area shall be used for the construction of desulfurization units);
 the coal yard edge in the southwest side;
 the outside edge of the electrostatic precipitator adjacent to Stack 3 in the northwest;
 the coal yard edge in the southwest.
After the K14 Boiler desulfurization unit is constructed in Phase 1 of the work performance, the other two
desulfurization units for Boilers K13 and K12 shall be constructed in the same area in the next Phases. This
means that all the process equipment, including building objects related to the desulfurization of all the three
Boilers K14÷K12, must be located in the specified area on the coal yard and area of the garage and store
building (see Fig. 2). The process equipment for all the three desulfurization units must be proposed so as to
require the smallest possible area of the coal yard.
The common equipment (such as store silos, operating material conveying system, utility lines, etc.) must be
proposed in the individual Phases of the construction with respect to the construction phasing (e.g., the
storage and transport system capacity must be properly sized in view of the number of common transport
routes and storage equipment).
Another area designated for locating the new process equipment shall be the area of the existing fly ash silos,
where the final desulfurization product silo, i.e., fifth silo in addition to the three existing fly ash silos and one
new fly ash silo, shall be built.
The requirements for technical parameters and process equipment, as specified herein for the K14 Boiler
desulfurization unit, shall also apply to the desulfurization units of Boilers K13÷K12 to the same extent.
We expect that the specified areas shall include the process equipment and building objects that form the
subject of the work:
1) Desulfurization units for Boilers K14÷K12 (Operating Set PS 10.02., Building Object SO 10.102.) –
shall be built in the specified area of the coal yard.
2) High-Pressure Air Station (Operating Set PS 10.06.) – shall be built within each individual building of
the desulfurization unit for Boiler K14÷K12 (Building Object SO 10.102.).
3) Low-Pressure Air Station (Operating Set PS 10.07.) – shall be built within each individual building of
the desulfurization unit for Boilers K14÷K12 (SO 10.102.).
4) Sorbent silos (Sub-Operating Set DPS 10.09..01 “Main Storage Silo” common for all the three
desulfurization units. The Ca(OH)2 operating silos - (Sub-Operating Set DPS 10.09..03) - “Ca(OH)2
Day Silo”) – shall be built in the specified area tightly adjacent to the desulfurization units.
5) Next to the existing fly ash silos and the new fly ash silo (Sub-Operating Set DPS 10.10..02), a new
outside silo shall be built to store the desulfurization product from all the three desulfurization units.
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6) The outdoor sorbent conveying lines shall be constructed within Sub-Operating Set DPS 10.09..02 “Sorbent Conveyance to Day Silo” and Sub-Operating Set DPS 10.09..04 - “Sorbent Conveyance to
Desulfurization Unit” in the specified area.
7) The outdoor desulfurization product conveying lines shall be constructed within Sub-Operating Set
DPS 10.10..01 - “Desulfurization Product Conveyance” between the desulfurization units in the
specified area and the new outside silo next to the existing fly ash silos.
8) Outdoor Distribution Piping (Operating Set PS 10.08.) – shall interconnect the individual
desulfurization process units and shall connect the new process equipment to the existing distribution
system.
9) Flue Gas Ducts (Operating Set PS 10.05.) shall run from the existing ID fans downstream of Boilers
K14, K13 and K12 to the new desulfurization units in the specified area and back to Stacks 2 and 3.
10) Fire Main and Fire Fighting Equipment (Building Object SO 10.203.) – shall be built to the extent of the
newly delivered process equipment and shall be connected to the existing fire water distribution
system. This system shall be situated in the desulfurization building area.
11) Stormwater and Sanitary Sewerage (Building Objects SO 10.204. and SO 10.205.) – shall be built to
the extent of the newly delivered process equipment and shall be connected to the existing Sewerage
System. This system shall be situated in the desulfurization unit building area.
12) Outdoor Lighting (Building Object SO 10.207.) – shall be built in the area of the new process
equipment.
The above-mentioned requirements are described in Annex 1 – Technical Requirement for the Performance of
the Work – Part 05 Layout.
2.3.
Construction Conditions
During the construction of the K14÷K12 Boiler desulfurization units, the measures associated with the
denitrification of K14÷K12 Boilers, (i.e., implementation of the primary and secondary measures), shall be
taken in parallel, and the projects related to slag removal from these boilers (to the outdoor area) shall be
implemented. The said technologies are not included in the work ; however, it is necessary to respect them, in
particular, during civil engineering and assembling works and equipment commissioning.
3.
WORK CHARACTERISTICS
3.1.
Work Objective
The work aims at ensuring the reduction of SO2 and solid particle (i.e., dust) concentrations in flue gases
downstream of the ETBII Boilers, i.e., downstream of Boilers K14, K13, K12 in the Třebovice Power Plant, to
the values specified below herein so as to meet the requirements set out in the Directive of the European
Parliament and Council No. 2010/75/EU on industrial emissions (IED).
The emission limit values achieved after the work subject implementation are specified in Chapter 4.1.2.1. –
Desulfurization Unit, Fabric Filter, Booster Induced-Draft Fan.
3.2.
Work Subject
The subject of this work shall be the design, delivery, assembly and commissioning of desulfurization units
for Boilers K14÷K12. The whole work, including the optional parts, shall be carried out in three phases in
different periods of time:
Phase I - Boiler K14 Desulfurization and Dedusting
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Phase II - Boiler K13 Desulfurization and Dedusting
Phase III - Boiler K12 Desulfurization and Dedusting
The desulfurization units shall ensure compliance with the SO2 and solid particle concentrations, as defined
below herein. The construction of desulfurization units and all related process equipment and building objects
shall be carried out under a “turnkey” contract, including the delivery of a complete design and contractor
documentation, physical delivery of the whole process equipment, performance of required construction work
(including demolitions, disassembly and relocations), equipment assembly and commissioning, delivery of
operating procedures of the delivered equipment and Employer personnel training.
Delivery and assembly of process equipment based on the principle of the dry or semi-dry lime
sorption desulfurization method with subsequent dust removal in the fabric filter are required for the
desulfurization units (for all the Phases.) The technology designed for each Phase shall be identical.
The existing electrostatic precipitators (EP) shall be preserved. The existing induced-draft fans shall continue
to control under-pressure in the boiler furnaces. Downstream of the existing induced-draft fans, the boiler flue
gases shall flow through new flue gas ducts to the desulfurization units. Desulfurized flue gases shall be driven
to the existing stacks (Stack 3 for K14 and K13, Stack 2 for K12).
We expect the work to consist of the following main technological units, (this shall apply to all the Phases,
unless specified otherwise):











Desulfurization Unit
Fabric Filter
New Flue Gas Ducts and New Booster Induced-Draft Fan
High-Pressure Air Supply Unit for Process Equipment
Low-Pressure Air Supply Unit for Process Equipment
All conveying lines of materials and energy commodities associated with the desulfurization and solid
particle separation from flue gases
Sorbent Management System
Desulfurization Product Management System
Heavy-Current Equipment and Distribution Lines
Instrumentation and Control System
Automated Control System
We require that burned lime CaO is used as the sorbent at the inlet into the desulfurization process equipment.
Moreover, we expect the unused and unreacted sorbent to be recycled for achieving higher desulfurization
process efficiency. Solid particles and reacted desulfurization product captured in the fabric filter shall be
conveyed to the final desulfurization product silo for disposal.
We point out that the flue gases flowing to the desulfurization unit will contain residues of the sorbent used for
the boiler DeNOx process system. A 40% urea solution shall be used as the sorbent.
3.3.
Scope, Structure, Basic Technical Description of the Work and
Requirements for Functions
The K14÷K12 Boiler desulfurization system is part of the Construction Project titled “Environmental Upgrading
of Boilers K12÷K14 in the Třebovice Power Plant”. The K14 Boiler Desulfurization System itself with an option
for K13 Desulfurization System shall form Building Unit 10 of that Construction Project.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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The whole work, including the options, shall be carried out in three phases. We require that the same
desulfurization technology is delivered for all the phases. The requirements listed below for the engineering
design are set out in view of the said requirement, jointly for all the three phases. All the common equipment
(storage tanks, silos, etc.) must already be completed in Phase I.
We expect Building Unit SC 10 K14 Boiler Desulfurization and Deducting shall particularly consist of the
following main parts, (which define the work scope):
3.3.1.
Basic Structure of the Work in Operating Sets and Building Objects:
A. Operating Sets
PS 10.01 Engineering Infrastructure Relocations
PS 10.02 Desulfurization Unit
PS 10.03 Fabric Filter
PS 10.04 Booster Induced-Draft Fan
PS 10.05 Flue Gas Ducts
PS 10.06 High-Pressure Air Station
DPS 10.06.01 Compressor Station
DPS 10.06.02 Compressed Air Treatment
DPS 10.06.03 Compressor Station Air Conditioning System
PS 10.07 Low-Pressure Air Station
PS 10.08 Outdoor Distribution Piping
DPS 10.08.01 Process Water and Rinsing Water Piping
DPS 10.08.02 Drinking Water Piping
DPS 10.08.03 Heating Water and Return Water Piping
DPS 10.08.04 Process Air Piping
DPS 10.08.05 Instrument Air Piping
PS 10.09 Sorbent Management System
DPS 10.09.01 Main Sorbent (CaO) Storage Silo
DPS 10.09.02 Sorbent Conveyance
DPS 10.09.03 Sorbent Treatment Plant and Ca(OH)2 Day Silo
PS 10.10 Desulfurization Product Management System
DPS 10.10.01 Desulfurization Product Conveyance
DPS 10.10.02 Desulfurization Product Storage Silo
PS 10.11 Industrial Vacuum Cleaner
PS 10.12 Heavy-Current Equipment and Distribution Lines
DPS 10.12.01 Transformers
DPS 10.12.02 6 kV Substations
DPS 10.12.03 Switchgears
DPS 10.12.04 Cabling and Cable Lines
DPS 10.12.05 Pipe Grounding
PS 10.13 Control Systems
DPS 10.13.01 Visualization of New Process Equipment
DPS 10.13.02 Power Supply for Control System, IN/OUT Modules and OS
DPS 10.13.03 Communication and Data Archiving
PS 10.14 Camera System
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
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B. Building Objects
SO 10.101 Demolitions
SO 10.102 Desulfurization Unit Building
SO 10.103 Civil Engineering Structures for Outdoor Process Lines and Equipment
DSO 10.103.01 Civil Engineering Structures for Booster Induced-Draft Fan
DSO 10.103.02 Foundations for New Flue Gas Ducts
DSO 10.103.03 Civil Engineering Structures for Outdoor Distribution Piping
DSO 10.103.04 Civil Engineering Structures for Sorbent Management System
DSO 10.103.05 Civil Engineering Structures for Desulfurization Product Management
System
SO 10.104 Modifications to Existing Stack
SO 10.105 Waste Disposal
C. Engineering Objects
SO 10.201 Construction Work for Utility Relocations
SO 10.202 Pipe and Cable Bridges
SO 10.203 Fire Main and Firefighting Equipment
SO 10.204 Stormwater Sewerage
SO 10.205 Sanitary Sewerage
SO 10.206 Roads and Paved Ways
SO 10.207 Outdoor Lighting
3.3.2.
Description of Operating Sets and Building Objects
For the purpose of making bids (and in particular, specifying the work price), the scope and technical
description of the anticipated process equipment are structured below into Operating Sets (PS), Sub-Operating
Sets (DPS), Building Objects (SO) and Sub-Building Objects (DSO). We require that the PS, DPS, SO and
DSO coding is applied to ensure the continuity with the Zoning Permit Documentation and Construction Permit
Documentation. If any part of the technology proposed by the Bidder does not allow the work to be structured
as proposed by the Employer, the Bidder may, upon consultation with the Employer, modify the coding to the
extent necessary by adding new Operating Sets (PS) or Building Objects (SO) or leaving the required
Operating Sets (PS) or Building Objects (SO) unoccupied, (in such a case, the Bidder shall write down
“Unoccupied” in the description of any such Operating Set or Building Object). In such a case, the Bidder shall
be based on the Operating Set and Building Object coding system specified in the Annex to the Technical
Report, Chapter 7, 6 “Operating Set and Building Object Coding System”.
The specific requirements of the Employer for the work scope, technological and layout designs are specified
below in the descriptions of the Operating Sets, Sub-Operating Sets, Building Objects and Sub-Building
Objects. The specified values and requirements for technical parameters are set out in Chapter 4 (Inputs for
Equipment Design and Required Work Parameters). The requirements for technical parameters of the work
that shall form the subject of the bid are particularly specified in Chapter 5 (Requirements for Content and
Form of the Technical Part of the Bid). The general requirements specified for the work are set out in Chapter
7.3 (Common General Requirements for the Scope and Implementation of Operating Sets and Building
Objects) and Chapter 7.4 (Standardization and Typification).
The specific design, functions and parameters of the individual process equipment included in the bid shall be
described and specified by the Bidder in its bid with the required structure, and all that also in the case of parts
that are not included in the documentation, but are necessary, as per Employer’s knowledge, for the reliable
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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and safe plant operation. The bid price must correspond to the scope of the processed equipment described in
the bid.
3.3.2.1
Description of Operating Sets
3.3.2.1.1 PS 10.01. Relocations
At present, there is no information on the existence of any utility lines in the specified area of the coal yard or
the garage and store building or outdoor area behind the boilers (see the Aerial Photo). Near the said areas,
the following systems (among other things) are situated (see Annex 1, Part 03, Drawing Archive No.: 0012003-00 Overall Layout):
1)
2)
3)
4)
5)
6)
7)
8)
9)
Heavy-Current Distribution Lines – 22 kV Underground Power Line
Railway Siding
F Sewer
S Sewer
Denitrification Agent (Satamin) Conveyance Line for K14 and K13 Boiler Denitrification
Sodium Bicarbonate Conveyance Line for K14 and K13 Boiler Desulfurization Unit
Air Conveyance Line for DeSOx and DeNOx
Light Fuel Oil (Startup Fuel) Conveyance Line
Dry Fly Ash Extraction Piping, Fly Ash Removal System through Hydraulic Piping Systems
It is not possible to relocate Railway Siding Track 6 or intervene in its protective zone. The passage clearance
must be preserved. It is not permitted either to relocate F Sewer.
The relocations arising due to the location of the newly designed process equipment and arising during the
construction of the new process equipment shall be part of the work and price. They shall be individually
solved by the Bidders within their bids depending on the proposed engineering design. The bid shall describe
the relocation scope. The delivery boundaries and connection points for the individual lines must respect the
work boundaries defined by the Employer – see Section 3.4. (Delivery Boundaries and Specification of Work
Connection Points). All the deliveries and assemblies shall be included in the work price.
In the bid, the Operating Set shall be structured into the following sections:
PS 10.01/Part 01 Mechanical Technology Part
PS 10.01/Part 02 Heavy-Current Equipment and Distribution Lines
PS 10.01/Part 03 Instrumentation and Control System
3.3.2.1.2 PS 10.02 Desulfurization Unit
Within the work subject, the desulfurization unit shall be delivered and installed for the flue gas desulfurization.
Non-desulfurized flue gases from the boiler shall be introduced into the desulfurization unit, which shall be
connected through new flue gas ducts to the existing flue gas ducts downstream of (i) the stack flap and (ii)
existing induced-draft fan of the boiler.
At the desulfurization unit inlet, burned lime CaO shall be used as the sorbent, which shall possibly be treated
as required by the offered technology. From the function perspective, the desulfurization unit shall consist of
one system with the fabric filter (PS 10.03. Fabric Filter). To intensify the desulfurization process and reduce
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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the sorbent consumption, the desulfurization unit shall be equipped with a suitably designed reaction product
recycling system.
The desulfurization unit and related process equipment shall be designed so as to allow an automatic
operation to the extent of the non-desulfurized flue gas flow rate, as specified in Chapter 4.1.2.1
(Desulfurization Unit, Fabric Filter, Booster Induced-Draft Fan). Each Bidder shall describe the proposed
desulfurization process and related process equipment, including all parameters and operation method in the
case of low outputs of the desulfurization unit (e.g., flue gas recirculation, etc.) within its bid.
The flue gas recirculation ducts shall be part of the delivery and assembly within Operating Set PS 10.05.
(Flue Gas Ducts). If it is necessary to install a flue gas recirculation fan to ensure the proper flue gas
recirculation in view of the proposed engineering design, then such a flue gas recirculation fan shall also be
part of the delivery of Operating Set PS 10.05. (Flue Gas Ducts). The desulfurization and fabric filter bypass
and any modifications to the flue gas duct shall also be part of the Operating Set PS 01.05.
In the case of designed desulfurization unit bypasses, we require that the existing flue gas ducts are used to
the maximum extent. The Bidder shall evaluate their appropriateness, and in the event that they are
unsatisfactory, then the Bidder shall explain such a fact and shall design new flue gas ducts.
We expect that the process equipment within any described Operating Set for the flue gas desulfurization by
means of the dry or semi-dry method shall include the below-mentioned main activities, deliveries and
assemblies of the process equipment and units structured into the individual Sub-Operating Sets:
PS 10.02/Part 01 Mechanical Technology Part
Within the Mechanical Technology Part, we expect the equipment to include at least the following parts:

Machinery and equipment – we anticipate the following main equipment:
 a reactor or similar equipment, where the sorbent reacts with sulfur dioxides and other acidic
components of flue gases;
 technology for moisturizing recycled dust, unused sorbent and fresh sorbent;
 conveying equipment (such as turnstiles, screw conveyors), which shall also be controllable
on site from local control boxes;
 desulfurization process control system;
 conveyance system for recycling unused sorbent and dust back to the reactor or similar
equipment where the desulfurization process takes place provided that it is part of the design
proposed by the Bidder.
The equipment shall be designed so as to eliminate any dust and sorbent settlement in its sections and avoid
abrasion and corrosion on its walls.
PS 10.02/Part 02 Heavy-Current Equipment and Distribution Lines
New consumers (drives etc.), as designed by the Bidder, shall be delivered for the K14 Boiler desulfurization
unit. The drives shall be connected through new cabling to the new Switchgear HR-04-44, see Operating Set
PS 10.12. (Heavy-Current Equipment and Distribution Lines).
The process equipment drives shall be remote-controlled by means of the ACS from the Operator Station and
locally controlled from local control boxes. The feeding and conveying equipment drives shall be provided with
a reverse running mode option. In the case of equipment where it is necessary to ensure that the medium flow
smoothly changes, the drive speed shall be controlled by means of frequency converters.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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Cables shall be laid on new cable structures (cable trays and racks). Surfaces of the structures shall be hotgalvanized. Metal parts of the fabric filter process equipment shall be connected to the common ground
network.
Minimum scope of activities:
 delivery and assembly of drives and other electrical equipment, as designed by the Bidder;
 delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting elements, as designed by the Bidder;
 delivery and assembly of control boxes, coupler boxes and revamping boxes, control and signaling
elements, as designed by the Bidder;
 delivery and assembly of any other equipment designated for reliable and safe operations of the
proposed process equipment, as designed by the Bidder.
PS 10.02/Part 03 Instrumentation and Control System (I & CS)
Controlling the SO2 output concentration in flue gases by sorbent dosing into the desulfurization process shall
be carried out on the basis of SO2 input concentration. The emission level shall be measured at both the inlet
and the outlet of the desulfurization unit. The output concentration data shall be measured upstream of the flue
gas inlet into the relevant stack and shall be transmitted to the emission monitoring system. The system of
measuring SO2 and other emissions (solid particles, CO, NOx) shall be part of Operating Set PS 10.05. Flue
Gas Ducts.
Within this Sub-Operating Set, it is necessary to install at least the above-mentioned measuring systems in
compliance with the general part of the tender specifications. The values and parameters below shall be
displayed in the K14 (K12, K13) Boiler Operator Station. To ensure trouble-free operation and obtain sufficient
information on the process equipment operation, other I & CS shall be designed, described and specified by
the Bidder in its bid.
The expected minimum scope of I & CS shall be as follows:
 water flow at the desulfurization unit inlet (t/h, m3/h);
 water pressure at the desulfurization unit inlet;
 flue gas temperature at the desulfurization unit inlet. If the boiler start-up is designed by means of a
desulfurization unit bypass, then it is also necessary to install a temperature measurement unit in
the bypass;
 flue gas pressure at the desulfurization unit inlet. If the boiler start-up is designed by means of a
desulfurization unit bypass, then it is also necessary to install a pressure measurement unit in the
bypass;
 air pressure at the desulfurization unit inlet. If the desulfurization unit technology proposed by the
Bidder requires that (i) the needed compressed air is supplied from the High-Pressure Air Station,
(which is the subject of Operating Set PS 10.06), or (ii) low-pressure air is supplied from the LowPressure Air Station, (which is the subject of Operating Set PS 10.07 - Low-Pressure Air Station),
then air pressure shall be measured at the relevant air pipelines at the desulfurization unit inlet;
 display of speed of controlled rotating equipment (in %);
 signaling of fitting conditions (position of shut-off elements – closed x open) as per general
requirements;
 display of opening position of control fittings (as a percentage of the overall control range);
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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 signaling of failures and emergency limits;
 The instrumentation and control system shall include complete equipment for an unmanned and
automated operation of the desulfurization unit;
 Other measuring systems, as required for the desulfurization unit operation, shall be described and
included by the Bidder in the work price.
The ACS must ensure, among other things, at least the following activities:











automatic start-up upon operator command;
automatic shut-down upon operator command;
automatic operation;
automatic control of the desulfurization unit operation for the requested SO2 concentration value at
the desulfurization unit outlet;
In the event of a failure of the desulfurization ACS causing a difference from the requested SO2
concentration value at the desulfurization outlet, there should be another method of controlling the
desulfurization process. In such a case, the proposed solution should allow the operator to switch
the control system to manual mode under which the operator shall be able to enter in the Operator
Station a sorbent quantity to be dosed or possibly, control other parameters, as required. The
scope of such parameters needed for manual control of the desulfurization unit and the method of
implementing such control shall be proposed by the Bidder in its bid;
opening or closing of electrical shutoff fittings or pneumatically controlled shutoff fittings in
automatic mode and manual mode upon operator command;
control of control fittings in automatic mode and manual entry of control fitting opening level,
expressed as a percentage of the overall control range, upon operator command;
automatic control of rotating equipment speed and rotating equipment operation in manual mode
with manual entry of speed of the controlled rotating equipment, expressed as a percentage of the
overall control range, upon operator command;
fully automatic control of the desulfurization process and manual control of the desulfurization
process (and individual process equipment) upon operator command, including start-up and shutdown (remote-controlled from the Operator Station);
equipment trip due to a failure to comply with the blocking conditions. In its bid, the Bidder shall
provide the description of blocking conditions;
desulfurization unit operation link to the operation control and blocking conditions of the relevant
boiler. In the designed ACS, the Bidder shall ensure a mutual interdependence of the operation
control and blocking conditions of the boiler and desulfurization unit so that events at any
equipment shall not affect the operation of or cause damage to any other equipment.
3.3.2.1.3 PS 10.03 Fabric Filter
To separate dust and dry sorbent from flue gases, separating equipment, i.e., a fabric filter, shall be installed
downstream of the desulfurization unit. Flue gases shall flow through dust and sorbent captured on the fabric
filter bags, and in the layer of the captured unused sorbent and dust, there shall be an additional reaction
between free sorbent hydrate and acidic components of flue gases. The process equipment shall be sized in
compliance with the requirements for the flue gas flow through the fabric filter, as specified by the Employer so
that the equipment shall allow the automatic operation in the range specified in Chapter 4.1.2.1. Desulfurization Unit, Fabric Filter, Booster Induced-Draft Fan.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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We expect the fabric filter to consist of a self-supporting steel structure fitted with a hopper under each
chamber of the filter unit, recovery system, air vessel, ladders, footbridges and other accessories arising from
the offered design. The fabric filter shall be designed as a vacuum unit with filter elements arranged in line and
pulse-regenerated by means of an on-line compressed air system, (which shall allow solid particles to be
separated on the external side of the filter bags). The number of filter unit chambers shall be proposed by the
Bidder as per the offered design. The individual chambers shall be equipped with shut-off elements at the inlet
and outlet (flap valve, gate valve, etc.) so that it shall be possible to shut them down during the filter operation.
The lower section of each chamber (above the hoppers) shall be designed so as to avoid any fall of foreign
objects (e.g., during maintenance or replacement of filter elements, etc.) into the feeding / extraction device
under the hoppers (for example, using a grid). The chambers shall be fitted with inspection holes allowing
access to the chamber put out of service during the filter operation.
The flue gas entry into the filter and built-in distribution elements shall be designed so as to prevent any fly ash
/ sorbent settlement. If allowed by the design, then we expect the filter structure to include an integrated
system of pre-separating the coarsest fraction.
The reinforcement retaining baskets shall be made of stainless steel and shall be designed as divided (e.g.,
two-section) equipment provided with a simple lock.
The Venturi nozzles shall be made of Class 11 steel without finishing and shall be structurally designed so as
to ensure a perfect tightness of the filter bag in the sieve plate (e.g., using the snap ring system).
The filter shall contain a recovery system with a compressed air vessel, compressed air distributor and electromagnetic valves for each row of the filter elements. The chronology of recovery of the individual rows shall be
directly controlled from the control system depending on a pressure drop of the filter and chosen period of time
from the last recovery, (the recovery cycle shall always take place after the limit of p = XXX Pa is reached or
the period of  =XX hours lapses) – the values shall be specified within the project. Compressed air for the
recovery shall be supplied from the Compressor Station (Operating Set PS 10.06.).
The filter area shall be designed with a 10% margin for filter bag installations. The filter elements (bags) shall
be designed with sufficient resistance to chemical conditions of the environment (hydrolysis, acids, oxidation,
solvents, alkalis, etc.). Thermal resistance shall correspond to the operated process equipment with a
sufficient tolerance for a potential short-term exceeding of the prescribed level. The used filter material must
correspond to filtered flue gases, used sorbent and boiler operation mode.
We require that the fabric filter (together with the desulfurization unit) is provided with a bypass. The bypass
itself is the subject of Operating Set PS 10.05 (Flue Gas Ducts).
Under the fabric filter hoppers, there shall be a conveyance system allowing unreacted sorbent to return to the
desulfurization process. Conveying air for a potential fluid conveyance of the recycled desulfurization product
to the desulfurization system shall be provided by the low-pressure air supply unit which is the subject of
Operating Set PS 10.07 (Low-Pressure Air Station).
The desulfurization product surplus shall be conveyed from under the fabric filter hoppers to the connected
pneumatic conveyance system or another conveyance system, which shall convey the waste product from the
desulfurization system to the final desulfurization product storage silo. Compressed air shall be supplied to the
desulfurization unit from the High-Pressure Air Station, which is the subject of Operating Set PS 10.06. The
conveyance system for the recycling of the fly ash / unused sorbent mixture is the subject of Operating Set PS
10.02 (Desulfurization Unit). The conveyance system for the removal of dust and sorbent surplus to the
desulfurization product silo is the subject of Operating Set PS 10.10 (Desulfurization Product Management
System).
For the maintenance purposes, lifting equipment shall be installed above the filter chambers. The lifting
equipment shall be sized for (i) lifting the covers of the individual chambers and (ii) potential handling of other
dismountable parts. In the upper section of the filter, at the level of individual chambers, the filter casing shall
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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contain a lockable assembly hole provided with a groove of lifting equipment designated for lifting and handling
during the replacement of filter elements.
The lower section of the filter building (under the hoppers) shall be moderately heated. The upper section of
the filter building (above the chambers) shall be equipped with a ventilation system providing a sufficient air
exchange particularly in summer.
Connections of the inlet and outlet flue gas ducts shall be made by means of flange joints. The requirements
for the flue gas duct installations at the desulfurization unit inlet and fabric filter outlet are set out in Operating
Set PS 10.05 (Flue Gas Ducts).
Other parameters, required equipment, protections (e.g., activated when the maximum allowable flue gas
temperature is reached upstream of the filter) etc. shall be proposed by the Bidder in view of the proposed
engineering design and based on its experience. Such a proposal shall be specified in the bid, (including the
plotting of measuring and signaling equipment) and shall be included in the work price.
We expect the operation of the individual devices of the fabric filter to be checked during walkthroughs twice
an 8-hour shift.
The equipment shall also be designed so that its operation noise level shall comply with the legislative limits
(i.e., limits set out in the Czech National Standards) in any operating condition.
It shall be possible to control the fabric filter process equipment from the K14 (K12, K13) Boiler Operator
Stations, as well as on site from the local control boxes signaling the equipment condition and allowing the
equipment to be switched to a chosen L/R control mode (local/remote).
Necessary measurement and signaling of operating conditions and parameters associated with the fabric filter
process equipment, where the relevant signals shall be transmitted to the local control boxes and through the
control system also to the K14 (K12, K13) Operator Station, shall be proposed by the Bidder based on its
experience and offered engineering design. This shall be specified in the bid, (including the plotting of
measuring and signaling equipment).
PS 10.03/Part 01 Mechanical Technology Part
Within the Mechanical Technology Part, we expect the equipment to include at least the following deliveries,
assemblies and activities:
 Machinery and equipment – we anticipate the following main equipment:
 filter bags
 filter baskets
 equipment for filter area recovery by compressed air
 hoppers
 equipment for aerating dust collected in the hopper under the fabric filter
 handling equipment used during repairs and maintenance
 other equipment – to be specified by the Bidder in its bid and to be included by the Bidder in
the total work price.
 Filter casing
PS 10.03/Part 02 Heavy-Current Equipment and Distribution Lines
New consumers (drives and other consumers) shall be delivered for the fabric filter process equipment, as
proposed by the Bidder. The drives shall be connected through new cabling to the new Switchgear HR-04-44,
(see Operating Set PS 10.12 (Heavy-Current Equipment and Distribution Lines).
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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The process equipment drives shall be remote-controllable from the Operator Station (through the ACS) and
controllable on site from the local control boxes. The drives of dosing and conveying equipment (e.g.,
turnstiles, screw conveyors) shall also be controllable on site from the local control boxes provided with a
reverse running mode option. In the case of equipment where it is necessary to ensure that the medium flow
smoothly changes, the drive speed shall be controlled by means of frequency converters. Some drives shall
also be controllable on site from the local control boxes with a reverse running mode option. Speed of selected
drives shall be controlled by means of frequency converters.
Cables shall be laid on new cable structures (cable trays and racks). Surfaces of the structures shall be hotgalvanized. Metal parts of the fabric filter process equipment shall be connected to the common ground
network.
Within the Chapter titled Heavy-Current Equipment and Distribution Lines, we expect the equipment to include
at least the following deliveries, assemblies and activities:
 delivery and assembly of drives and other electrical equipment, as designed by the Bidder;
 delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting elements;
 delivery and assembly of control boxes, coupler boxes and revamping boxes, control and signaling
elements;
 delivery and assembly of any other equipment designated for reliable and safe operations of the
designed process equipment.
PS 10.03/Part 03 Instrumentation and Control System (I & CS)
I & CS transducers and instruments of the new fabric filter process equipment shall be connected to the new
switchgear cabinet with I/O modules of the control system (see Operating Set PS 10.13 - Control System).
It is necessary to install at least such measuring equipment in compliance with the general section of the
tender specifications. The values and parameters below shall be displayed in the K 14 (K12, K13) Boiler
Operator Station. Other needed measuring and signaling systems of the fabric filter process equipment, whose
signals shall be transmitted to the local control boxes and through the control system also to the K14 (K12,
K13) Boiler Operator Station, shall be proposed by the Bidder based on its experience and offered engineering
design. Such a proposal shall be specified in the bid, (including the plotting of measuring and signaling
equipment).
The expected minimum scope of deliveries and activities shall be as follows:
flue gas temperature upstream of the filter;
flue gas temperature downstream of the filter;
flue gas pressure upstream of the filter;
flue gas pressure downstream of the filter;
difference in pressure upstream and downstream of the filter (pressure drop);
dust and sorbent temperature and level height in the individual hoppers of the filter;
signaling of failures and emergency limits
delivery and assembly of instruments (supply units, transducers, etc.), cabling, cable lines for the
above-mentioned I & CS;
 delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting elements;
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Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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 construction of access platforms and ladders for the installed measuring equipment;
 delivery and assembly of any other equipment for reliable and safe operations of the proposed
process equipment;
 remote measurement proposed by the Bidder for unmanned operation;
 any other measurement proposed by the Bidder.
Automated Control System (ACS)
The fabric filter process equipment control shall be implemented through the K14 (K12, K13) Boiler control
system (see Operating Set PS 10.13 - Control System).
The ACS must provide a basic handling of operating conditions, including other general processes and
sequences. The ACS must ensure the following control functions:
automatic “start-up” of the fabric filter upon operator command;
automatic “shut-down” of the fabric filter upon operator command;
automatic “operation” of the fabric filter;
automatic “operation” of the fabric filter recovery system;
fabric filter control upon operator command, including start-up and shut-down (remote-controlled
from the Operator Station);
 display of the fabric filter process equipment condition in the Operator Station;
 blocking (i.e., tripping) conditions in relation to the boiler operation.
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3.3.2.1.4 PS 10.04 Booster Induced-Draft Fan
Having passed through the desulfurization unit, the desulfurized flue gases shall be driven through a new flue
gas duct to the existing stack. To overcome pressure drops in the desulfurization unit, a new booster induceddraft fan and flue gas flow control equipment shall be installed downstream of the desulfurization unit. In the
event that a frequency converter is installed, the unit shall be equipped so as to minimize the frequency
converter operation impacts on the ETB power network.
The new fans shall be installed on vibration insulators to prevent any vibration transfer to the adjacent building
structures. We require the fan and motor bearing to be fitted with vibration and temperature measuring
equipment whose signals shall be transmitted to the control system.
The existing induced-draft fans downstream of the existing electrostatic precipitators shall be preserved and
shall continue to compensate the pressure drop of the relevant boilers and electrostatic precipitators and shall
maintain the requested negative pressure value in the boiler combustion chamber.
The Operating Set shall include deliveries, assemblies and activities structured by the Sub-Operating Sets
below:
PS 01.04/Part 01 Mechanical Technology Part
Within the Mechanical Technology Part, we expect the equipment to include at least the following deliveries,
assemblies and activities:
1.
Center:
Order No.:
Machinery and equipment – we anticipate the following main equipment:
 fan
 control system
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
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lifting and transport equipment
other equipment – to be specified by the Bidder in its bid and to be included by the Bidder in
the total work price
PS 01.04/Part 02 Heavy-Current Equipment and Distribution Lines
Power supply for the machine unit drive shall be provided from R6-14 Substation, Bay 10 (see Operating Set
PS 10.12 - Heavy-Current Equipment and Distribution Lines) to the revamping box installed in the motor area.
A rubber cable shall be used for the connection of the revamping box with the motor terminal block.
A control box, including its cabling, shall be installed to ensure that the whole machine unit can be started up.
The local control box shall be provided with a current measuring unit, controllers allowing the machine to be
started up locally and a remote / local control switch.
Within the heavy-current distribution lines and equipment, we expect the equipment to include at least the
following deliveries, assemblies and activities:
 drive – a new 6 kV, 50 Hz electric motor. It shall be fitted with winding and bearing temperature
measurement sensors;
 delivery and assembly of control boxes;
 measurement of electricity consumption of the machine unit (kW, kWh) and transmission of such
data to the Micro-Dispatch Center;
 delivery and assembly of all cabling and cable lines for related machine unit process equipment. All
the cable lines shall be laid on hot-galvanized structures or in galvanized ducts;
 establishment of a new outlet of Bay 10 in Substation R6-14;
 performance of comprehensive tests of the electrical equipment, including voltage tests of cables
and issuance of Test Completion Certificates and Statutory Inspection Reports.
PS 01.04/Part 03 Instrumentation and Control System (I & CS)
It is necessary to install at least the measuring units specified below in compliance with the general part of the
tender specifications. The values and parameters specified below shall be displayed in the K14 (K12, K13)
Boiler Operation Station. Other measuring and control units for trouble-free running and obtaining sufficient
information on the process equipment operation shall be proposed, described and specified by the Bidder in its
bid. In particular, such other measuring and control units shall include:
displaying the control element position (in %, etc.);
signaling failures and emergency limits;
measuring the fan and motor bearing temperature and vibrations;
flue gas pressure downstream of the induced-draft fan;
signaling the power supply for the machine unit drive;
total number of machine unit operating hours;
current number of operating hours with a resetting option;
other measurements, as recommended by the manufacturer
delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting elements;
 construction of access platforms and ladders for the installed measuring equipment.
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Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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The blocking conditions for starting up the new booster induced-draft fan shall be specified by the Bidder in its
bid depending on the fan type and engineering design of the delivered desulfurization unit.
The ACS must ensure, among other things, at least the following activities:




automatic start-up upon operator command
automatic shut-down upon operator command
automatic operation
entering the set points expressed as a percentage of the control element range upon operator
command, (control upon operator command, including start-up and shut-down – remote-controlled
from the Operator Station)
3.3.2.1.5 PS 10.05 Flue Gas Ducts
The subject of this Operating Set shall be the delivery and assembly of new flue gas ducts and related process
equipment designated for driving (i) non-desulfurized flue gases from the relevant boilers to the desulfurization
units, (ii) desulfurized flue gases from the desulfurization unit outlets to the fabric filters and (iii) desulfurized
and dedusted flue gases from the fabric filter outlet to the respective existing stacks.
The Operating Set shall also include the flue gas ducts designated for the flue gas recirculation, (provided that
such recirculation is required by the desulfurization technology in view of the flue gas scope specified in
Chapter 4.1.2.1 Desulfurization Unit, Fabric Filter, Booster Induced-Draft Fan), and any other modifications to
the flue gas ducts in order to ensure safe and reliable functions of the desulfurization unit in compliance with
the requirements set out herein.
The Bidder must design and implement the flue gas ducts for various operating conditions from the minimum
to the maximum output and boiler start-up with light-fuel oil start-up burners. Therefore, the work shall include
an appropriately designed bypass of the desulfurization unit along with the fabric filter.
For a short period of time, the bypass may also be used for removing flue gases from a relevant boiler to a
relevant stack in the event that the desulfurization unit fails. The bypass design and operation mode shall be
described in the bid. In any case, we require that a mechanically controlled shut-off element (pneumatic drive,
servodrive, etc.) is designed for opening and closing the bypass. Such a shut-off control element shall be
controlled from the Operator Station and on site from the local control box. This Operating Set shall also deal
with the other shut-off elements to separate the individual units of the process equipment – desulfurization unit,
fabric filter, (always both the inlet and outlet sections of the flue gas duct). We require all the shut-off elements
to be implemented as fully tight closures.
We require that the existing flue gas ducts are used to the maximum extent. (The Bidder shall assess their
suitability, and if they are not suitable, then the Bidder shall substantiate any such fact and shall design new
ducts.)
The engineering design proposed by the Bidder shall also include a solution of issues regarding the
condensing of flue gas moisture in the section of flue gas ducts where the flue gas flow shall be temporarily or
continuously reduced or even discontinued. The Bidder shall propose and describe its solution within its design
of the work subject in its bid, (e.g., through a suitable sloping of the flue gas ducts, drains, heating etc.). If the
delivery includes flue gas sections where flue gas condensate may be gathered without any continuous
drainage thereof, then such sections shall be made of material resistant to the acidic condensate (e.g., suitable
stainless steel, etc.).
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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TOTAL PAGES:
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PS 10.05/Part 01 Mechanical Technology Part
Within the Mechanical Technology Part, we expect the equipment to include at least the following deliveries,
assemblies and activities:
 (complete) disassembly;
 machinery and equipment – possibly, to be specified by the Bidder in its bid and to be included by
the Bidder in the total work price;
 piping and fittings;
 delivery and assembly of all sections of the flue gas ducts – flue gas ducting, flanges,
transition pieces, expansion bends and duct fittings;
 delivery and assembly of connection, deaeration, drainage and other pipelines, flanges,
transition pieces, expansion bends;
 delivery and assembly of relevant shut-off and control fittings, including drives, safety valves,
flap valves, explosion flaps;
 delivery and assembly of welded-on pieces, wells, pulse piping and other accessories for
instrumentation and control systems.
PS 10.05/Part 02 Heavy-Current Equipment and Distribution Lines
New consumers shall be delivered for the flue gas ducts, as proposed by the Bidder. The drives and other
electrical equipment shall be connected through new cables to the new Switchgear HR-04-44, (see Operating
Set PS 10.12 - Heavy-Current Equipment and Distribution Lines).
The process equipment drives shall be remote-controllable from the K14 (K12, K13) Boiler Operator Station
and some drives shall also be controllable on site from the local control box.
Cables shall be laid on new cable structures (cable trays and racks). Surfaces of the structures shall be hotgalvanized. Metal parts of the fabric filter process equipment shall be connected to the common ground
network.
Within the heavy-current equipment and distribution lines, we expect the equipment to include at least the
following deliveries, assemblies and activities:
 delivery and assembly of drives and other electrical equipment, as designed by the Bidder;
 delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting elements;
 delivery and assembly of control boxes, coupler boxes and revamping boxes, control and signaling
elements, as designed by the Bidder;
 delivery and assembly of any other equipment for reliable and safe operations of the delivered
process equipment.
PS 10.05/Part 03 Instrumentation and Control System (I & CS)
The existing SO2, NOx, CO and solid particle (dust) emission monitoring system, including the O2 and
temperature measurement system, installed downstream of the relevant boilers, shall be dismantled and
removed.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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TOTAL PAGES:
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Note: The disassembly and relocation of the existing ammonia slip measuring unit installed downstream of Boilers K14 and K13 and
upstream of the stack inlet are included in the Project titled “Denitrification of Boilers K14, K13, K12”, which is currently being
implemented.
The work subject shall include the delivery and installation of a new SO2, NOx, CO and solid particle (dust)
emission monitoring system, including an O2, moisture and temperature measurement system, on the flue gas
duct downstream of the desulfurization unit and bypass (and upstream of the stack inlet). Within its
engineering design, the Bidder shall propose a new location of the replaced measuring equipment downstream
of the desulfurization unit and bypass (and upstream of the stack inlet) so that its location shall comply with the
requirements set out in the applicable Czech National Standards (ČSN) and legislation. The location of the
gaseous substance and solid particle emission monitoring system and access platforms shall be designed and
implemented with redundant space so as to be possible in the future to add an ammonia slip measuring unit
on the flue gas duct downstream of the desulfurization unit and bypass (upstream of the stack inlet).
Within the work performance, the flue gas duct shall be newly equipped with a SO2, NOx, CO and solid particle
(dust) emission monitoring system, including an O2, moisture and temperature measurement system,
upstream of the desulfurization unit and bypass (and downstream of the existing electrostatic precipitator and
induced-draft fan). Within its engineering design, the Bidder shall propose its location so that the conditions of
such location shall comply with the requirements set out in the applicable Czech National Standards (ČSN)
and legislation. Moreover, the flue gas duct shall be equipped so as to be possible to carry out diagnostic
measurement of emissions in accordance with the applicable legislation.
Moreover, within the work performance, the flue gas duct shall be newly fitted with a connection point for
ammonia slip measuring equipment upstream of the desulfurization unit and bypass (and downstream of the
existing electrostatic precipitator and induced-draft fan). Within its engineering design, the Bidder shall propose
the location of such a connection point so that the conditions for such location shall comply with the
requirements set out in the applicable Czech National Standards (ČSN) and legislation. Moreover, the flue gas
duct shall be equipped so as to be possible to carry out diagnostic measurement in accordance with the
applicable legislation.
The emission concentration data measured at the desulfurization inlet and outlet shall be transmitted to the
control system and shall be visualized in the K14 (K12, K13) Boiler Operator Station.
Apart from the continuous monitoring data, the control system shall also receive binary status signals,
including at least failure, calibration, maintenance and other data from the new measuring units (installed
upstream and downstream of the desulfurization unit).
The emission concentration data measured upstream of the stack inlet and other accompanying data,
including status signals of the analyzer, necessary for the emission evaluation, shall be introduced into the
emission monitoring system (EisOrgNet).
We require that solid particle emissions are newly measured by dust meters compatible with those installed at
Boilers K3 and K4.
We require that the new (SO2, NOx, CO, O2) gas emission monitoring system is implemented by means of “INSITU” method, i.e., the measuring unit shall be directly installed in the flue gas duct and shall include analyzers
compatible with those installed at Boilers K3 and K4. O2 measurement shall be carried out by means of a
zirconia oxygen analyzer, including an automated calibration unit.
The instruments shall be calibrated before commissioning. The delivery shall also include the assembly of
sampling points, including installations of needed access platforms and ladders.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
25
TOTAL PAGES:
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Within the performance of the work and no later than the date of commencing its preparation for
comprehensive testing, the Bidder shall ensure diagnostic measurement for the newly delivered and installed
emission monitoring system. Such verification shall be carried out by an authorized person.
Minimum performance scope:
 disassembly of the existing solid particle and gas emission monitoring system and accompanying
measuring units, (e.g., flue gas temperature measuring equipment);
 delivery, installation and commissioning of the new solid particle and gas emission monitoring
system and accompanying measuring units, (i.e., O2 concentration, flue gas temperature and
moisture measuring equipment) upstream of the stack inlet;
 delivery, installation and commissioning of the new solid particle and gas emission monitoring
system and accompanying measuring units, (i.e., O2 concentration, flue gas temperature and
moisture measuring equipment) upstream of the desulfurization unit;
 delivery and installation of a connection point for the NH3 slip measuring unit upstream of the
desulfurization unit;
 construction of access platforms and ladders for the installed measuring equipment;
 delivery and installation of sampling points for diagnostic measurement.
3.3.2.1.5.1 PS 10.06 High-Pressure Air Station
The subject of this Operating Set comprises process equipment designated for the compressed air production,
treatment and supply. Within the work performance, the Bidder shall design and implement for each
desulfurization unit a separate Compressor Station, which shall meet the compressed air demand of the
desulfurization unit and related process equipment.
The compressed air pipelines outgoing from the individual Compressor Stations shall be mutually
interconnected through a compressed air backbone-distribution pipeline with a dew point of +3°C such that it
shall be possible to supply compressed air from any Compressor Station for any other desulfurization unit. The
design of interconnection on the compressed air side with the dew point of +3°C must allow compressed air to
be produced at a dew point of -40°C for a relevant desulfurization unit.
The above-mentioned backbone pipe network shall also be interconnected with the existing compressed air
distribution system. Such interconnection shall be carried out with a size corresponding to the air supply from
the existing compressed air network for all the three desulfurization units. This pipeline shall be equipped with
shut-off fittings.
Within the designed desulfurization process equipment, we expect the Compressor Station to particularly
cover the compressed air demand of the following systems:
 sorbent conveyance system;
 conveyance of the desulfurization product from the desulfurization unit to the desulfurization product
storage silo;
 process equipment and fitting control system;
 fabric filter bag recovery and cleaning system.
The High-Pressure Air Station (Compressor Station, compressed air treatment equipment and Compressor
Station air conditioning equipment) shall be located in the relevant desulfurization unit building. The whole
technology shall be designed for the automated operation mode, i.e., automatic start-up, shut-down and
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
26
TOTAL PAGES:
118
running. The bid shall include functional technology diagrams, and based on them, it must be clear how the
process equipment works. All measuring equipment, actuators, control links etc. shall be plotted in diagrams.
This Operating Set includes the following Sub-Operating Sets:
3.3.2.1.5.2 DPS 10.06.01 Compressor Station
The Compressor Station shall include at least compressors, air dryers, air receivers and (oil, water and dust)
separators. The output product of the new Compressor Station shall be compressed air at a pressure level
necessary for ensuring safe and reliable operation of all consumers and dried to the pressure dew point
corresponding to the character of compressed air use in the desulfurization technology, (we anticipate the
pressure level specified in Section 4.1.2.3.). The quality of produced compressed air used in the
desulfurization unit must not cause any failure of the sorbent or desulfurization product conveyance system or
fabric filters or anywhere else.
We expect new compressor units to be delivered and assembled within the work performance. The
compressor unit shall be deemed to be the compressor itself with relevant compressor equipment and drive.
The compressor units shall be arranged in stand-by mode of 1+1 (1 compressor in service, 1 compressor
stand-by) to meet the maximum compressed air demand. The Compressor Station must be designed so that
the noise level in each operating condition shall comply with the applicable legal limits, as defined in the
relevant Czech National Standard (ČSN).
DPS 10.06.01/Part 01 Mechanical Technology Part
The compressors shall be screw-type units provided with an oil injection system, an air after-cooler and
condensate separators. We expect that the compressor shall be air cooled. We require that each compressor
unit is fitted with a direct connection of the electric motor with the compressor. Both the compressor units shall
be equipped with frequency converters for the purposes of speed control.
Air shall enter each compressor through an intake section fitted with a filter and efficient suction noise silencer.
We require that within the work performance, the Bidder designs and implements equipment for sufficient air
supply from the external area to the compressor intake section.
The compressor discharge section shall be fitted with a safety valve, backflow prevention valve and shut-off
fitting with an automated condensate separator.
The discharge of each compressor shall be terminated at one common distributor to be delivered and mounted
as part of this work. The work shall also include the delivery and installation of all pipelines, interconnection
piping and other materials associated with the implementation of the Compressor Station. The discharge
distributor shall be connected to the air treatment equipment – see the text below.
The compressors shall be embedded on the foundations by means of flexible elements and shall be connected
to the distribution pipeline by means of flexible extension bends in order to prevent any vibration transfer from
the compressors to the relevant distribution piping and other process equipment.
We expect the compressor operation to be checked during walkthroughs once a shift. The compressors shall
be controlled locally on site and remote-controlled from the K14 (K12, K13) Boiler Operator Station. Signals
describing the compressor operation, i.e., on, off, fault and local control signals, shall be transmitted to the
Operator Station. Any needed measurement and signaling displayed in the Operator Station shall be proposed
by the Bidder in view of the offered engineering design and based on its experience. The design proposed by
the Bidder shall be specified in the bid, and the measuring and signaling equipment shall be plotted in the
relevant drawings.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
27
TOTAL PAGES:
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Within the Mechanical Technology Part of the Sub-Operating Set, we expect the equipment to include at least
the following deliveries, assemblies and activities:
 Machinery and equipment:
 Screw-type compressors, including electric motors;
 Suction filters, noise silencers in the intake section.
 Pipelines and fittings
 All the pipe sections for all compressors – delivery and assembly of delivery, connection and
any other piping running from the compressors to the distributors, drain piping, flanges,
transition pieces, expansion bends, pipe fittings;
 Fittings – delivery and assembly of relevant shut-off and control fittings, including drives,
safety valves, non-return flap valves;
 Welded-on pieces, pits, pulse piping and other accessories for I & CS;
 Steel structures and fitting products (staircases, ladders, footbridges, handrails).
DPS 10.06.01/Part 02 Heavy-Current Equipment and Distribution Lines
The requirements specified below for the engineering design and scope of delivery and assemblies for the
Heavy-Current Equipment and Distribution Lines shall be common for the following Sub-Operating Sets:
DPS 10.06.01 Compressor Station
DPS 10.06.02 Compressed Air Treatment
DPS 10.06.03 Compressor Station Air Conditioning System
New consumers proposed by the Bidder shall be delivered and installed for the process equipment installed in
the Compressor Station, compressed air treatment unit and Compressor Station air conditioning system. The
power supply system of the compressors, other drives and any other electrical equipment, such as electrical
fittings, air distribution and treatment systems, etc., shall be connected to the new Switchgear HR-04-44, (see
Operating Set PS 10.12 - Heavy-Current Equipment and Distribution Lines).
The process equipment drives shall be controllable from the K14 (K12, K13) Boiler Operator Station through
the K14 (K12, K13) control system. Some of the drives shall also be controllable on site from local control
boxes (and shall possibly be fitted with a reverse running mode option). Speed of two (2) compressor units and
other selected drives shall be controlled by frequency converters.
The cables shall be laid on new cable structures (cable trays and racks). The structure surface shall be hotgalvanized. Metal parts of the Compressor Station process equipment shall be connected to the common
ground network.
Within the Heavy-Current Equipment and Distribution Lines, we expect the equipment to include at least the
following deliveries, assemblies and activities:
 delivery and assembly of drives, electrical fittings and other electrical equipment;
 delivery and assembly of two frequency converters, (unless they are part of the compressor units);
 delivery and assembly of power supply and control cabling, cable lines, supporting and connecting
elements;
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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 delivery and assembly of local control boxes, coupler boxes and revamping boxes, control and
signaling elements;
 delivery and assembly of any other equipment for reliable and safe operations of the delivered
process equipment.
DPS 10.06.01/Part 03 Instrumentation and Control System (I & CS)
The requirements specified below for the engineering solution and scope of deliveries and assemblies for the
Instrumentation and Control System shall be common for the following Sub-Operating Sets:
DPS 10.06.01 Compressor Station
DPS 10.06.02 Compressed Air Treatment
DPS 10.06.03 Compressor Station Air Conditioning System
New instrumentation and control systems (I & CS ) proposed by the Bidder shall be delivered and installed for
the process equipment situated in the Compressor Station, compressed air treatment unit and Compressor
Station air conditioning system. I & CS outputs shall be transmitted to the new In/Out module connected to the
K14 (K12, K13) Boiler control system. This switchgear shall include, among other things, I & CS supply units,
transducers and other elements.
The output cards of the new In/Out module shall transmit process equipment control signals. Through the
connected distribution cabling, such signals shall be transmitted directly or through cut-out relays to actuators.
The expected minimum scope of deliveries and activities shall be as follows:

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

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



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Center:
Order No.:
delivery and assembly of pressure measuring equipment downstream of each compressor;
delivery and assembly of pressure measuring equipment downstream of the instrument air dryer (at
-40°C) provided that the dryer is included in the work;
delivery and assembly of pressure measuring equipment downstream of the process air dryer (at
+3°C);
delivery and assembly of air dryer pressure drop measuring equipment;
delivery and assembly of air temperature measuring equipment at the discharge pipeline of each
compressor;
delivery and assembly of air temperature measuring equipment at the distributor downstream of the
process air dryer (+ 3 °C);
delivery and assembly of air temperature measuring equipment at the distributor downstream of the
instrument air dryer (– 40 °C) provided that the dryer is included in the work;
delivery and assembly of one air temperature measuring unit in the Compressor Station room,
(where such a measuring unit shall be installed on the Compressor Station wall);
delivery and assembly of a compressed air flow measuring unit at the process air dryer outlet (+ 3
°C) with the correction for pressure and temperature;
delivery and assembly of a compressed air flow measuring unit at the instrument air dryer (- 40 °C)
with the correction for pressure and temperature provided that the dryer is included in the work;
delivery and assembly of other I & CS instruments, control drives of fittings and similar equipment,
including transducers, power supply units and other related elements;
remote measuring equipment recommended by the manufacturer for the unmanned operation and
equipment condition signaling system;
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delivery and assembly of power supply and control cabling, cable lines, supporting and connecting
elements;
delivery and assembly – switchgear, coupler and revamping boxes, control and signaling elements;
construction of access platforms and ladders for the installed measuring equipment;
delivery and assembly of any other equipment, as required for reliable and safe operations of the
proposed process equipment.
Automated Control System (ACS)
The Compressor Station, compressed air treatment unit and air conditioning unit of the Compressor Station
shall be controlled from the K14 (K12, K13) Boiler control system. The Contractor shall ensure the
performance of all activities associated with the extension of the existing control system, data transmission and
SW supplementation.
Compressor Unit:
The basic configuration of each compressor shall include an autonomous module designated for local control,
start-up and shut-down of the compressor, fitted with a display showing equipment condition data. The
compressor unit operation data (i.e., on, off, loaded / deloaded, fault, protection activated, interlock activated,
failure to meet the conditions, fault summary, etc.) shall be signaled.
K14 (K12, K13) Boiler Control System
Modifications to the control system shall be designed and implemented so that it shall be possible to monitor in
the relevant K14 (K12, K13) Boiler Operator Stations the compressor unit condition and enter commands to
control the compressor unit. The K14 (K12, K13) Boiler control system shall include a new SW to control the
Compressor Station process equipment. The new SW shall ensure an optimum compressor operation, basic
handling of operating conditions, limit operator interventions to the minimum extent and other general
processes, as required by the process equipment itself.
All the interlocks, technological links, start-up and shut-down sequences, including stand-by and stand-in
sequences, controls and links to the other Automated Control Systems, shall be ensured within the PLC
system. Therefore, the control system SW shall check the fulfillment of all individual steps and links. Only
afterwards, it shall transmit a (remote-controlled) command to start up or shut down a relevant drive or any
other actuator. Modifications to the existing control system shall be designed and implemented so as to ensure
that the process equipment actuators respond to the operator command for all the circuits within a period of no
longer than 2 seconds.
Operator Stations:
The process equipment of the compressors, air receivers, air distribution and treatment systems and air
conditioning unit of the Compressor Station shall be visualized in the relevant K14 (K12, K13) Boiler Operator
Stations. The existing visualization SW shall be upgraded so that the individual screen shall also display the
new process equipment.
The expected minimum scope of the Automated Control System shall be as follows:
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Center:
Order No.:
automatic compressor start-up / operation / shut-down;
automatic compressor stand-in;
automatic air pressure control at the Compressor Station outlet;
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automatic start-up / operation / shut-down of the instrument air and process air dryers;
automatic control of process air and instrument air drying quality;
automatic air temperature control in the Compressor Station through the Compressor Station air
conditioning unit;
transmission of required signals from the technological process to the control system;
displaying the process equipment condition in the K14 (K12, K13) Boiler Operator Station;
control upon operator command;
delivery and assembly of power supply and control cabling, cable lines, supporting and connecting
elements;
delivery and assembly of any other equipment for reliable and safe operation of the delivered
process equipment.
3.3.2.1.5.3 DPS 10.06.02 Compressed Air Treatment
We require that the work subject includes the delivery and assembly of air treatment units. Such units shall be
connected to the discharge distributor of the new Compressor Station and shall be located in the common
areas of the Compressor Station.
Moreover, we expect instrument air to be dried to a dew point temperature of approximately - 40°C and
process air to be dried to a dew point temperature of approximately + 3°C.
The instrument air drying equipment shall be installed downstream of the process air drying equipment. We
require that the dryers and air receivers are fitted with condensate separators and bypasses. The dryer
performance at +3 °C and -40°C shall be designed and implemented for a flow necessary for the
desulfurization unit and related boiler process equipment. Such a value, expressed in Nm3/h, shall be specified
in the bid. The driers shall be designed so that no air is lost for reactivation. The description of an exact design,
i.e., number, parameters, location, equipment and any other parts of the air treatment units, shall be specified
in the bid.
We expect the operation of the individual systems to be checked during walkthroughs once a shift.
The equipment must be designed so that in any operating condition, its noise level shall comply with the
applicable legal limits, (set out in the applicable Czech National Standards).
We also require that the delivery of the work also includes a separate vessel designated for the collection of
waste oil from the compressors. The vessel volume shall be specified in the offer. Condensate from the air
dryers shall be driven to the Rebeka Waste Water Treatment Plant.
DPS 10.06.02/Part 01 Mechanical Technology Part
Within this Section, we expect the equipment to include at least the following deliveries, assemblies and
activities:
 Machinery and equipment:
 delivery and assembly of an instrument air dryer;
 delivery and assembly of a process air dryer;
 delivery and assembly of an air receiver;
 delivery and assembly of oil, water and dust separators;
 delivery and assembly of distributors, connection and other piping
 All pipe sections - delivery and assembly of discharge, connection and other piping – piping,
flanges, transition pieces, expansion bends and pipe fittings. Drain piping, including fittings;
Center:
Order No.:
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 Fittings - delivery and assembly of relevant shut-off and control fittings and elements, including
drives, explosion flaps, filters, etc.;
 Welded-on pieces, pulse piping and other accessories for I & CS;
 Steel structures and fitting products (staircases, ladders, footbridges, handrails).
DPS 10.06.02/Part 02 Heavy-Current Equipment and Distribution Lines
The requirements for this section are set out within Sub-Operating Set DPS 10.06.01 Compressor Station –
Part: Heavy-Current Equipment and Distribution Lines (DPS 10.06.01/Part 02).
DPS 10.06.02/Part 03 Instrumentation and Control System (I & CS)
The requirements for this section are set out within Sub-Operating Set DPS 10.06.01 Compressor Station –
Part: Instrumentation and Control System (DPS 10.06.01/Part 03).
3.3.2.1.5.4 DPS 10.06.03 Compressor Station Air Conditioning System
To ensure air supplies for


compressed air production
ventilation of waste heat from the compressor coolers
the Bidder shall design an air conditioning unit. We expect waste heat from the compressor coolers to be used
for heating the Compressor Station areas in the winter period. In summer the ventilation air heated by cooling
the compressor shall be led from the Compressor Station away to the outdoor area.
DPS 10.06.03/Part 01 Mechanical Technology Part
The Compressor Station design shall ensure the required air supply to the individual compressor intake
sections so as to maintain the required air temperature in the Compressor Station area and thus ensure safe
and trouble-free operation of the Compressor Station process equipment.
The flaps and possibly also air conditioning piping shall also provide air to the Low-Pressure Air Station (in the
event that the DPS 10.06..01 Compressor Station also includes the Low-Pressure Air Station – PS 10.07.).
The air intake section providing air to the ventilation and compressed air production shall be fitted with efficient
noise silencers and filters capturing coarse dust suctioned from the outdoor area. We expect the cooling air
circulation to be ensured within the compressor technology. If not, then such equipment shall be part of the air
conditioning equipment.
We require that the air conditioning piping is made of galvanized sheeting with four-edge section and is fitted
with anti-noise and thermal insulation. The air conditioning discharge piping designated for leading warmed
ventilation air away from the Compressor Station area shall be equipped with efficient noise silencers.
 Machinery and equipment:
 Noise silencers in the intake section;
 Noise silencers in the discharge section;
 All sections of the air conditioning piping - delivery and assembly of intake, discharge, connection
and other piping – air conditioning piping, flanges, transition pieces, expansion bends, flexible
joints, adapting pipes and pipe fittings. Drain piping, including fittings;
Center:
Order No.:
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 Fittings - delivery and assembly of relevant shut-off and control fittings, including drives, filters,
louvers, etc.;
 Welded-on pieces, pulse piping and other accessories for I & CS;
 Steel structures and fitting products (staircases, ladders, footbridges, handrails).
In its bid, the Bidder shall specify the applied system and shall provide a list of main machines to be included
in the work price.
DPS 10.06.03/Part 02 Heavy-Current Equipment and Distribution Lines
The requirements for this Section are set out within Sub-Operating Set DPS 10.06..01 Compressor Station –
Part Heavy-Current Equipment and Distribution Lines (DPS 10.06..01/Part 02).
DPS 10.06.03/Part 03 Instrumentation and Control System (I & CS)
The requirements for this Section are set out within Sub-Operating Set DPS 10.06..01 Compressor Station –
Part Instrumentation and Control System (DPS 10.06..01/Part 03). In addition, the room air temperature shall
be automatically controlled in view of the set point.
3.3.2.1.5.5 PS 10.07 Low-Pressure Air Station
If the process equipment designed by the Bidder for the K14÷K12 Boiler desulfurization requires low-pressure
air supplies, the Bidder shall design such a supply system within this Operating Set. We expect the lowpressure air production equipment to be located in the desulfurization unit building – see SO 10.102
Desulfurization Building. We also expect that the process equipment within the described Operating Set shall
include the below-mentioned activities and delivery and assembly of the process equipment and units
structured by the following Parts:
PS 10.07/Part 01 Mechanical Technology Part
We expect that low-pressure air shall be provided by blowers or any other compressed air production
equipment. We require that the bearings of low-pressure air production equipment are fitted with vibration and
temperature measuring units transmitting their data to the control system. We expect the Mechanical
Technology Part to include at least the following deliveries, assemblies and activities:
 Machinery and equipment:
 Low-pressure air production equipment, including electric motors;
 Air receiver
 Pipelines and fittings
 All sections of the piping for all low-pressure air production equipment - delivery and assembly
of discharge, connection and other piping from the equipment to the distributors, drain piping,
flanges, transition pieces, expansion bends and pipe fittings;
 Fittings - delivery and assembly relevant shut-off and control fittings, including drives, safety
valves, non-return flap valves;
 Welded-on pieces, pulse piping and other accessories for I & CS;
 Steel structures and fitting products (staircases, ladders, footbridges, handrails).
Center:
Order No.:
ŘS- 4300
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We require that the number of units is in the configuration of n+1 (n = number of units to meet the maximum
low-pressure air demand, 1= stand-by for an outage of the largest unit).
PS 10.07/Part 02 Heavy-Current Equipment and Distribution Lines
The Bidder shall design new consumers for the Low-Pressure Air Station process equipment. The drives of
low-pressure air units and other drives and possibly also other electrical equipment shall be connected through
new cables to the new Switchgear HR-04-44 (see Operating Set PS 10.12 Heavy-Current Equipment and
Distribution Lines).
The drives of process equipment and electrical fittings shall be remote-controllable from the Operator Station
(through the ACS) and controllable on site from the local control boxes. Speed of selected drives shall be
controlled by frequency converters. The cables shall be laid on new cable structures (cable trays and racks).
The structure surface shall be hot-galvanized.
Within the heavy-current distribution system, we expect that at least the following items to be ensured:
 delivery and assembly of drives and other electrical equipment, as designed by the Bidder;
 systems measuring input power (kW) and electricity consumption per each unit (kWh) and
transmitting measured data to the control system;
 delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting elements;
 delivery and assembly of control boxes, coupler boxes and revamping boxes, control and signaling
elements, as designed by the Bidder;
 delivery and assembly of any other equipment for reliable and safe operations of the delivered
process equipment.
PS 10.07/Part 03 Instrumentation and Control System (I & CS)
The low-pressure air production unit running in the Low-Pressure Air Station, (i.e., start, operation with
required output, outage), shall be controlled to keep the entered overpressure value at the low-pressure air
distributor outlet in the Low-Pressure Air Station. The units shall be equipped with an autonomous control unit
to ensure local control, unit start-up and shut-down and monitor the equipment running and faults on its
display. The following operating conditions of the units shall be signaled:

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on
off
fault
protection or interlock activated
failure to comply with the conditions
fault summary
any other signaling system proposed by the Bidder.
Within I & CS, it is expected that at least the following measurements shall be carried out:
 Overpressure at the unit outlet (individually for each unit) in MPa;
 Air temperature at the unit outlet (individually for each unit) in °C;
 Unit capacity (individually for each unit) in Nm3/h;
Center:
Order No.:
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 Overpressure at the common distributor in MPa;
 Air temperature at the common distributor in °C;
 Delivery and assembly of relevant power supply and control cabling, cable lines, supporting and
connecting cable elements;
 Construction of access platforms and ladders for installed measuring equipment.
3.3.2.1.6 PS 10.08 Outdoor Distribution Piping
The subject of this Operating Set shall be the delivery and assembly of all, particularly outdoor, distribution
piping that is not included in any other Operating Set. The Operating Set is structured by the medium type into
several Sub-Operating Sets, within each of which we expect the equipment to include at least the following
deliveries, assemblies and activities. (Such requirements shall be common for the Sub-Operating Sets):
Mechanical Technology
 Any disassembly;
 Machinery and equipment:
 Delivery of booster pumps or pressure increasing pumps if required by the design proposed by
the Bidder;
 Delivery of any other equipment if required by the design proposed by the Bidder;
 Pipelines and fittings:
 All pipe sections - delivery and assembly of pipelines from the connection points of the existing
distribution piping to the new consumers or inlets into other Operating Sets or Sub-Operating
Sets, drain piping, flanges, transition pieces, expansion bends and pipe fittings;
 Fittings - delivery and assembly of relevant shut-off and control fittings, including drives, safety
valves and non-return flap valves;
 Welded-on pieces, pulse piping and other accessories for I & CS;
 Steel structures and fitting products (staircases, ladders, footbridges, handrails).
Heavy-Current Equipment and Distribution Lines
If within this Operating Set the Bidder designs any electrical drives of fittings or pumps designated jointly for all
the three Phases, then such drives shall be connected through new cabling to the new Switchgear RM-85. If
within this Operating Set the Bidder only designs electrical drives for Phase I, then such drives shall be
connected through new cabling to the new Switchgear HR-04-44, (see Operating Set PS 10.12 Heavy-Current
Equipment and Distribution Lines).
The process equipment drives shall be remote-controllable from the Operator Station (through the ACS).
Some drives shall also be controllable on site from the local control boxes. The cables shall be laid on new
cable structures (cable trays and racks). The structure surface shall be hot-galvanized.
Within the heavy-current distribution lines and equipment, we expect the equipment to include at least the
following deliveries, assemblies and operations to meet the requirements raised for this Part in the abovementioned description of the Operating Set:
 delivery and assembly of drives and other electrical equipment, as designed by the Bidder;
 delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting elements;
Center:
Order No.:
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 delivery and assembly of control boxes, coupler boxes and revamping boxes, control and signaling
elements, as designed by the Bidder;
 delivery and assembly of any other equipment for reliable and safe operations of the delivered
process equipment.
Instrumentation and Control System (I & CS)
The distribution piping shall be fitted with (i) indicating instruments designated for the equipment operator
checking the medium parameters during walkthroughs, and (ii) transducers transmitting data of monitored
parameters to the control system and Operator Station.
The indicating instruments and transducers with remote data transmission shall be installed at the locations
proposed by the Bidder as per the requirement and character of the designed process equipment, as well as
required by the control system and safe operation.
We expect that at least the distribution piping specified below shall be built within Operating Set PS 10.08
Outdoor Distribution Piping. If any of the expected distribution piping is not designed by the Bidder, the Bidder
shall state such a fact in its bid. Any other distribution piping required on the basis of the proposed technology
design shall be added and described by the Bidder in its bid.
3.3.2.1.6.1 DPS 10.08.01 – Process Water and Rinsing Water Piping
Process and rinsing water shall be supplied through a new common pipeline within this Sub-Operating Set
connected to the Filtered Water Distributor 5 at the southern gable wall of the Machine Hall building. Process
and rinsing water shall meet the desulfurization system demand (for slaking burned lime, moisturizing the
mixture of recycled product and fresh sorbent etc.). For the bid purposes, the description of the process
equipment and price specification provided by the Bidder within this Sub-Operating Set shall be structured into
the following sections:
 DPS 10.08.01/Part 01 Mechanical Technology Part
 DPS 10.08.01/Part 02 Heavy-Current Equipment and Distribution Lines
 DPS 10.08.01/Part 03 Instrumentation and Control System
Within I & CS, it is expected that the following measuring and systems shall be implemented:




Medium overpressure (MPa);
Flow rate (m3/h);
Delivery and assembly of relevant power supply and control cabling, cable lines, supporting and
connecting cable elements;
Construction of access platforms and ladders for installed measuring equipment.
3.3.2.1.6.2 DPS 10.08.02 – Drinking Water Piping
Within this Operating Set, drinking water shall be supplied through a new pipeline connected to the existing
drinking water distribution piping at Box 01Ú of the Boiler House at an elevation of 7.5 m. In the desulfurization
unit building, drinking water shall meet hygienic and washing needs in the event that the operator is stained
with pollutants. For the purpose of the bid, the process equipment description and price specification within this
Sub-Operating Set shall be structured by the Bidder into the following sections:
Center:
Order No.:
ŘS- 4300
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Archive Number:
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 DPS 10.08.02/Part 01 Mechanical Technology
 DPS 10.08.02/Part 02 Heavy-Current Equipment and Distribution Lines
 DPS 10.08.02/Part 03 Instrumentation and Control System
3.3.2.1.6.3 DPS 10.08.03 – Heating Water and Return Water Piping
The heating water and return water piping shall be built between the desulfurization unit building and existing
heating water and return water piping such that the connection shall be installed above the K14 fixed
firefighting equipment building at ML142. Heating water shall heat the desulfurization unit building areas, (and
possibly also the High-Pressure Air Station and Low-Pressure Air Station in the event that heating these areas
by means of warmed waste air from the compressors is insufficient.)
For the purpose of the bid, the process equipment description and price specification within this Sub-Operating
Set shall be structured by the Bidder into the following sections:
 DPS 10.08.03/Part 01 Mechanical Technology
 DPS 10.08.03/Part 02 Heavy-Current Equipment and Distribution Lines
 DPS 10.08.03/Part 03 Instrumentation and Control System
3.3.2.1.6.4 DPS 10.08.04 – Process Air Piping
Within this Sub-Operating Set, the process compressed air piping for the desulfurization unit shall be built from
the outlet of the Sub-Operating Set DPS 10.06.02 Compressed Air Treatment to the individual consumers
(fabric filter, sorbent or desulfurization product pneumatic conveyance system, etc.) and moreover, two
interconnection pipelines shall be built at the existing ETB compressed air piping. The first interconnection
pipeline shall be built during the K14 Boiler desulfurization unit construction, and the other interconnection
pipeline shall be built during the K12 Boiler desulfurization unit construction. In its bid, the Bidder shall specify
and describe the distribution piping scope in great detail. For the purpose of the bid, the process equipment
description and price specification within this Sub-Operating Set shall be structured by the Bidder into the
following sections:
 DPS 10.08.04/Part 01 Mechanical Technology
 DPS 10.08.04/Part 02 Heavy-Current Equipment and Distribution Lines
 DPS 10.08.04/Part 03 Instrumentation and Control System
Within I & CS, it is expected that the following measuring units and equipment shall be installed:




Medium overpressure (MPa);
Flow rate in Nm3/h;
Delivery and assembly of relevant power supply and control cabling, cable lines, supporting and
connecting cable elements;
Construction of access platforms and ladders for the installed measuring equipment.
3.3.2.1.6.5 DPS 10.08.05 – Instrument Air Piping
Within this Sub-Operating Set, the instrument air piping for controlling the actuators and other desulfurization
process equipment shall be built from the outlet of Sub-Operating Set DPS 10.06.02 Compressed Air
Center:
Order No.:
ŘS- 4300
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File:
Archive Number:
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Treatment to the individual consumers. In its bid, the Bidder shall specify and describe the distribution piping
scope in great detail. For the purpose of the bid, the process equipment description and price specification
within this Sub-Operating Set shall be structured by the Bidder into the following sections:
 DPS 10.08.05/Part 01 Mechanical Technology Part
 DPS 10.08.05/Part 02 Heavy-Current Equipment and Distribution Lines
 DPS 10.08.05/Part 03 Instrumentation and Control System
Within I & CS, it is expected that the following measuring units and equipment shall be installed:




Medium overpressure (MPa);
Flow rate in Nm3/h;
Delivery and assembly of relevant power supply and control cabling, cable lines, supporting and
connecting cable elements;
Construction of access platforms and ladders for the installed measuring equipment.
3.3.2.1.7 PS 10.09 Sorbent Management System
This Operating Set shall include the delivery and assembly of sorbent unloading, storage and treatment
equipment; (sorbent shall be unloaded from tank trucks using compressed air). The compressed air supply unit
for unloading sorbent from the tank truck to the silos shall not be included in the Bidder’s delivery; (the tank
truck shall be equipped with a compressed air supply unit).
Burned line CaO shall be used as sorbent at the inlet into the desulfurization process. Sorbent for all the three
desulfurization units shall be unloaded to the common main sorbent (CaO) storage silo - see Sub-Operating
Set 10.09.01 Main Sorbent (CaO) Storage Silo.
Furthermore, the Sorbent Management System Operating Set shall include equipment for the sorbent
treatment to the state required by the desulfurization technology – we expect Ca(OH)2. If required by the
technology proposed by the Bidder, the equipment for the storage of such treated sorbent, i.e., Ca(OH)2 day
silos, shall be designed for each desulfurization unit separately. In such a case, such silos shall be the subject
of Sub-Operating Set DPS 10.09.03 Sorbent Treatment Plant and Ca(OH)2 Day Silo. The Employer prefers the
block arrangement, i.e., a solution where each desulfurization unit shall have its own equipment for sorbent
treatment to the required state, (e.g., slaking), and its own Ca(OH)2 day silo.
The equipment for sorbent conveyance from the sorbent unloading facility connection point to the common
main sorbent (CaO) storage silo and the conveyance from the storage silo to the desulfurization unit shall be
the subjects of Sub-Operating Set DPS 10.09.02 Sorbent Conveyance.
The requirements for sizing the capacity of the process equipment included in this Operating Set are set out in
Chapter 4.1.2. – Equipment Sizing – Specified Parameters and Requirements.
3.3.2.1.7.1 DPS 10.09.01 – Main Sorbent (CaO) Storage Silo
The main sorbent storage silo (s) shall be located in a specified area so as to be easily accessible for the
sorbent conveyance and unloading from tilting tank trucks to full height so that traffic on the adjacent railway
siding track or bypass road shall not be affected. Sorbent shall be pneumatically unloaded from the tank trucks
fitted with their own compressors and shall be pneumatically loaded into the silos. Such operations shall be
carried out by an outside contractor. It shall be possible to connect the outlet pipelines to the silo loading pipes
by means of a flexible hose, (which shall be included in the carrier’s equipment). It shall be possible to connect
the hoses only after swinging away a safety arm on the loading pipe, which shall be signaled in the Operator
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
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Station. After the loading is completed, the carrier shall disconnect the hose and shall swing the safety arm in.
In the event that the maximum level in the silo is exceeded due to overloading, the loading pipe shall
immediately close and the overloading shall be signaled by a local horn provided with light. In its bid, the
Bidder shall specify the location of the main sorbent storage silo (s).
DPS 10.09.01/Part 01 Mechanical Technology Part
The silo shall consist of a cylindrical steel vessel with a suitable diameter and height. The silo shall be made of
steel and shall be equipped with a hopper connected to the sorbent conveying equipment. It shall be installed
on a steel structure. The silo (s) shall be accessible through a steel staircase protected by hot-galvanized
coating against atmospheric influences.
The silo shall be fitted with required equipment, i.e., aeration equipment, sorbent level measuring equipment,
ladder, operating platform, handrail, etc. The Sub-Operating Set shall include unloading equipment, which
shall unload the sorbent from the tank truck arranged for pipe connection by means of a quick-acting coupling
provided with a bayonet closure. The silo shall be deaerated by means of filter equipment, (e.g., fabric filter
with compressed air pulse regeneration) and exhaust fan and shall meet the requirement for the maximum
solid particle concentration of up to 10 mg/m³. The aeration equipment filter shall be mounted directly to the
upper cover of the silo. The silo shall be secured against an excessive overpressure by safety valves in the
event that the silo is overloaded or the filter is clogged. The silo shall include equipment securing it against any
overloading or overfilling, including a local audible alarm system signaling the highest possible level in the silo
(i.e., emergency limit).
The silo shall be designed and manufactured for the sorbent mass flow, (i.e., if the unloading hole opens, all
the material shall be set in motion and shall start sliding along the silo walls without forming any adhered
sections, arches or core flow). This shall be achieved through a suitable silo shape, internal surface materials,
purification, etc. We require that the Bidder specifies the proposed design.
In its bid, the Bidder shall also specify a paint system of the silo (type, thickness…), including explanation of
the suitability of the given system application. The bid shall also specify actions to be taken against any
agglomeration of the preparation (due to moisture), as well as the period of permitted sorbent storage in the
silo.
We also require that the Bidder’s design eliminates any sorbent leak into surface or underground water or
receiving Sewer F or any ground contamination. The proposed design shall be described in the bid.
Within the Mechanical Technology Part, we expect the equipment to include at least the following deliveries,
assemblies and activities, which shall meet the requirements for the sorbent silo, as specified herein, to the
extent of the above-mentioned description of the Operating Set and Sub-Operating Set.
 Machinery and equipment:
 Main (CaO) sorbent storage silo;
 Filter unit at the main (CaO) sorbent storage silo;
 Unloading facility for the main (CaO) sorbent storage silo;
 Pipelines and fittings:
 All pipe sections - delivery and assembly of piping, drain piping, flanges, transition pieces,
expansion bends and pipe fittings;
 Fittings – delivery and assembly of relevant shut-off and control fittings, including drives,
safety valves and non-return flap valves;
 Welded-on pieces, pulse piping and other accessories for I & CS;
 Steel structures and fitting products (staircases, ladders, footbridges, handrails).
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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The silo shall be designed so that it shall be possible to simply and safely empty it through connected
conveying equipment into closed containers or vessels. Such containers or vessels shall not be included in the
bid.
DPS 10.09.01/Part 02 Heavy-Current Equipment and Distribution Lines
If within this Operating Set the Bidder designs for example electric drives of feeding and conveying equipment
designated jointly for all the three phases, then such drives shall be connected through new cabling to the new
Switchgear RM-85. If within this Operating Set the Bidder designs electrical drives designated only for Phase I,
then such drives shall be connected through new cabling to the new Switchgear HR-04-44, (see Operating Set
PS 10.12 Heavy-Current Equipment and Distribution Lines).
The process equipment drives shall be remote-controllable from the Operator Station (through the ACS). The
drives of feeding and conveying equipment (such as turnstiles, screw conveyors) shall also be controllable on
site from local control boxes with a reverse running mode option. In the case of equipment where it is
necessary to smoothly change the medium flow, the drive speed shall be controlled by frequency converters.
The cables shall be laid on new cable structures (cable trays and racks). The structure surface shall be hotgalvanized.
Within the Part titled Heavy-Current Equipment and Distribution Lines, we expect the equipment to include at
least the following deliveries, assemblies and activities:
 delivery and assembly of drives and other electrical equipment, as designed by the Bidder;
 delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting elements;
 delivery and assembly of control boxes, coupler boxes and revamping boxes, control and signaling
elements, as designed by the Bidder;
 delivery and assembly of any other equipment for reliable and safe operation of the delivered
process equipment.
DPS 10.09.01/Part 03 Instrumentation and Control System (I & CS)
A continuous level measuring system with an output of 4÷ 20 mA shall be installed at the silo. The measuring
system shall also be equipped with a local indicator. The measurement scope shall be predetermined by the
storage silo dimensions and structural arrangement. To determine the reached maximum level (i.e.,
Emergency Limit I), a suitable binary (contact) sensor, including a local audible signal system, shall be
delivered and installed at the silo. To determine the reached minimum level (i.e., Emergency Limit II), a
suitable binary (contact) sensor, including a local audible signal system, shall be delivered and installed at the
silo. The fittings shall be provided with condition control and signaling equipment allowing local control on site
and remote control from a relevant Operator Station. The values and parameters mentioned below shall be
displayed locally and remotely in the Operator Station.
Within the section dealing with the Instrumentation and Control System, it is expected to install at least the
following measuring equipment at each of the silos:




Center:
Order No.:
delivery and installation of analogue level indicators;
delivery and installation of binary maximum level indicators;
delivery and installation of minimum level indicators;
delivery and installation of a pressure gauge at the compressed air distribution pipeline;
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
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 delivery and installation of a signaling system for the silo loading equipment;
 delivery and installation of a signaling system for the silo unloading equipment;
 delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting cable elements;
 construction of access platforms and ladders for the installed measuring equipment;
 delivery and assembly of control boxes, coupler boxes and control and signaling elements;
 delivery and assembly of any other equipment designated for reliable and safe operations of the
proposed technology.
3.3.2.1.7.2 DPS 10.09.02 Sorbent Conveyance
The subject of this Sub-Operating Set shall be all the equipment designated for conveying the sorbent from the
sorbent unloading facility connection point to the common main (CaO) sorbent storage silo, CaO conveyance
to the additive treatment facility and Ca(OH)2 day silo and conveyance from the Ca(OH)2 day silo to the
desulfurization unit.
The conveying lines shall be designed in a dust-free manner to prevent any leak of the conveying or conveyed
medium outside the conveying equipment. We expect the conveyance system to be pneumatic. We require
that the pneumatic conveying lines are equipped with all necessary equipment, such as fittings, measuring
equipment etc. The bid shall specify the method of preventing any sorbent adherence to the conveyance
piping. The process equipment shall be designed so as to resist as much as possible to wear caused by the
conveyed medium in any operating mode and in the whole output range. We require that the design is
proposed so that it shall be possible to simply check and clean relevant pipelines during the shut-down. A
relevant method shall be sufficiently described in the bid. We also require that the bid includes a specification
of materials proposed for the pipe systems.
As for the fitting control system, the Client prefers applying an electric and pneumatic control system.
DPS 10.09.02/Part 01 Mechanical Technology Part
Within the Mechanical Technology Part, we expect the equipment to include at least the following deliveries,
assemblies and activities:
Machinery and conveying system (pneumatic conveying equipment, screw conveyors or other
mechanical conveyors) if designed by the Bidder within this Sub-Operating Set;

Pipelines and fittings:
 All pipe sections - delivery and assembly of sorbent conveying pipelines if proposed by the
Bidder; the conveying air pipelines shall be the subject of Sub-Operating Set DPS 10.08.05 Process Air Piping, Flanges, Transition Pieces, Expansion Bends, Pipe Fittings;
 Fittings - delivery and assembly of relevant shut-off and control fittings, including drives, safety
valves and non-return flap valves;
 Welded-on pieces, pulse piping and other accessories for I & CS;

Steel structures and fitting products (staircases, ladders, footbridges, handrails).

DPS 10.09.02/Part 02 Heavy-Current Equipment and Distribution Lines
The sorbent conveying equipment shall be fitted with electrically or electrically and pneumatically controlled
drives, fittings and other instruments to the extent of the Bidder’s proposal so that the equipment operation
shall require minimum interventions by the operators. If within this Operating Set the Bidder designs electric
drives and electric equipment designated jointly for all the three phases, then such drives shall be connected
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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through new cabling to the new Switchgear RM-85. If within this Operating Set the Bidder designs electrical
drives and electrical equipment designated for Phase I only, then such drives shall be connected through new
cabling to the new Switchgear HR-04-44; (see Operating Set PS 10.12 Heavy-Current Equipment and
Distribution Lines).
The conveying system drives shall be remote-controlled from the Operator Station (through the ACS). The
feeding and conveying equipment drives, such as turnstiles and screw conveyors, if designed, shall be
controllable remotely and locally from local control boxes with a reverse running mode option. In the case of
equipment where it is necessary to smoothly change the medium flow, the drive speed shall be controlled by
frequency converters. The cables shall be laid on new cable structures (cable trays and racks). The structure
surface shall be hot-galvanized.
Within the Heavy-Current Equipment and Distribution Lines, we expect the equipment to include at least the
following deliveries, assemblies and activities:
 delivery and assembly of electrically and pneumatically controlled fittings and other electrically
controlled equipment, as designed by the Bidder;
 delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting elements;
 delivery and assembly of control boxes, coupler boxes and revamping boxes, control and signaling
elements, as designed by the Bidder;
 delivery and assembly of any other equipment for reliable and safe operation of the delivered
process equipment.
DPS 10.09.02/Part 03 Instrumentation and Control System (I & CS)
The expected minimum scope of activities shall be as follows:
 delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting cable elements;
 delivery and assembly of switchgears, control boxes, coupler boxes and revamping boxes, control
and signaling elements;
 delivery and assembly of instrumentation and control units, fitting control system drives and similar
equipment, including converters, power supply units and other related elements;
 delivery and assembly of any other equipment designated for reliable and safe operations of the
proposed technology.
3.3.2.1.7.3 DPS 10.09.03 – Sorbent Treatment Plant and Ca(OH)2 Day Silo
The Ca(OH)2 day silo (s) shall be located close to the desulfurization unit.
DPS 10.09.03/Part 01 – Mechanical Technology Part
The additive treatment equipment shall transform the sorbent in its input form, i.e., CaO, into the form required
by the desulfurization process. It shall be designed so that its capacity shall meet the needs of the
desulfurization unit and the operation shall be safe and failure-free. We anticipate the CaO slaking to obtain
Ca(OH)2.
The Ca(OH)2 day silo (s) shall consist of a steel vessel with a suitable diameter and height. The silo (s) shall
be made of steel sheeting and shall be fitted with hoppers connected to the sorbent conveying equipment.
The silo (s) shall be fitted with required equipment, i.e., aeration equipment, Ca(OH)2 level measuring
equipment, ladder, operating platform, handrails etc. The silo (s) shall be accessible through a steel staircase
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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protected by hot-galvanized coating against atmospheric influences. The silo shall be deaerated by means of
filter equipment, (e.g., fabric filter with compressed air pulse regeneration) and exhaust fan and shall meet the
requirement for the maximum solid particle concentration of up to 10 mg/m³. The aeration equipment filter shall
be mounted directly to the upper cover of the silo. The silo (s) shall be secured against an excessive
overpressure by safety valves in the event that the silo is overloaded or the filter is clogged. The silo (s) shall
include equipment securing it against any overloading or overfilling, including a local audible alarm system
signaling the highest possible level in the silo (i.e., emergency limit).
The silo(s) shall be designed and manufactured for the Ca(OH)2 mass flow, (i.e., if the unloading hole opens,
all the material shall be set in motion and shall start sliding along the silo walls without forming any adhered
sections, arches or core flow). This shall be achieved through a suitable silo shape, internal surface materials,
purification, etc. We require that the Bidder specifies the proposed design in its bid, where the Bidder shall
also specify a paint system of the silo (type, thickness…), including explanation of the suitability of the given
system application. The bid shall also specify actions to be taken against any agglomeration of the preparation
(due to moisture), as well as the period of permitted sorbent storage in the silo.
We also require that the Bidder’s design eliminates any Ca(OH)2 leaks into surface or underground water or
receiving Sewer F or any ground contamination. The proposed design shall be described in the bid.
It shall also be possible to directly unload Ca(OH)2 from the tank truck to the Ca(OH)2 day silo (in the event of
a failure of the main storage silo). In such a case, the silo or the connection point shall be easily accessible by
trucks. Ca(OH)2 shall be pneumatically unloaded from the tank trucks, each with an anticipated capacity of
approximately 40 m3 and each fitted with its own compressors.
It shall be possible to connect the hoses only after swinging away a safety arm on the loading pipe, which shall
be signaled in the K14 (K13, K12) Boiler Operator Station. After the loading is completed, the carrier shall
disconnect the hose and shall swing the safety arm in. In the event that the maximum level in the silo is
exceeded due to overloading, the loading pipe shall immediately close and the overloading shall be signaled
by a local horn provided with light.
Within the Mechanical Technology Part, we expect the equipment to include at least the following deliveries,
assemblies and activities:
 Machinery and equipment
 Ca(OH)2 day silo vessel;
 filter unit at the Ca(OH)2 day silo;
 unloading facility – see the description above;
 CaO treatment (e.g., slaking) plant – if required by the desulfurization technology proposed by
the Bidder;
 conveying equipment (screw conveyors, pneumatic conveying equipment or other similar
equipment) designated for Ca(OH)2 conveyance within the Sub-Operating Set.
 Pipelines and fittings
 All pipe sections - delivery and assembly of piping, drain piping, flanges, transition pieces,
expansion bends and pipe fittings;
 Fittings - delivery and assembly of relevant shut-off and control fittings, including drives, safety
valves and non-return flap valves;
 Welded-on pieces, pulse piping and other accessories for I & CS;
 Steel structures and fitting products (staircases, ladders, footbridges, handrails).
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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The silo shall be designed so that it shall be possible to simply and safely empty it through connected
conveying equipment into closed containers or vessels. Such containers or vessels shall not be included in the
bid.
DPS 10.09.03/Part 02 Heavy-Current Equipment and Distribution Lines
The Bidder shall design new consumers for the day silo technology. For example, electrical drives of the
feeding and conveying equipment, and possibly other electrical equipment shall be connected through new
cabling to the new Switchgear HR-04-44, (see Operating Set PS 10.12 Heavy-Current Equipment and
Distribution Lines).
The process equipment drives and drives of electric fittings shall be remote-controllable from the Operator
Station (through the ACS) and locally controllable from local control boxes. Speed of selected drives shall be
controlled by frequency converters. The cables shall be laid on new cable structures (cable trays and racks).
The structure surface shall be hot-galvanized.
DPS 10.09.03/Part 03 Instrumentation and Control System (I & CS)
The requirements for the scope and engineering design of this Sub-Operating Set shall be the same as those
set out with respect to Sub-Operating Set DPS 10.09.01 Main Sorbent Storage Silo - Part 03 Instrumentation
and Control System.
3.3.2.1.8 PS 10.10 Desulfurization Product Management System
The desulfurization product shall be conveyed through new conveying duct lines from the desulfurization unit
to the desulfurization product storage silo. The conveying equipment is the subject of Sub-Operating Set DPS
10.10.01 Desulfurization Product Conveyance.
To store the desulfurization product, a new desulfurization product storage silo shall be designed and
delivered. It shall be located close to the existing fly ash silo. The silo shall be jointly used for storing the
contaminated fly ash produced in all the three desulfurization units. The desulfurization product storage silo is
the subject of Sub-Operating Set DPS 10.10.02. It shall be possible to dispatch the desulfurization product
stored in the storage silo by tank trucks. To possibly mix the contaminated fly ash with the desulfurization
product and clean fly ash, we require that redundant space is provided for the mixing plant installation. The fly
ash / final product mixing plant itself shall not be the subject of the work. The redundant space size shall be
identical with the existing state, where this solution has already been implemented. The redundant space for
the mixing plant shall also be taken into account in the Electrical Part. The desulfurization product silo and the
existing adjacent outside fly ash silo shall be mutually interconnected at their inlet sections (to ensure their
substitutability).
3.3.2.1.8.1 DPS 10.10.01 – Desulfurization Product Conveyance
The subject of this Sub-Operating Set shall be all the equipment designated for conveying the desulfurization
product from the boiler desulfurization unit to the desulfurization product storage silo.
DPS 10.10.01/Part 01 Mechanical Technology Part
The subject of this Sub-Operating Set shall be all the equipment designated for conveying the desulfurization
product from the boiler desulfurization unit to the desulfurization product storage silo, (we expect such a
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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product to be conveyed from the hoppers installed under the fabric filter). The conveying lines shall be
designed in a dust-free manner to prevent any leak of the conveying or conveyed medium outside the
conveying equipment. We anticipate a pneumatic conveying system. In such a case, the Compressor Station
shall be a conveying air supply unit – see Sub-Operating Set DPS 10.06.01. We require that the pneumatic
conveying lines are fitted with all necessary equipment, such as fittings, measuring equipment, etc. The bid
shall specify the way of preventing any settlement of the desulfurization product in the conveying pipelines in
any operating mode and in the whole capacity range of the desulfurization product conveyance.
The process equipment shall be designed so as to resist as much as possible to wear caused by the conveyed
medium. We require that the design is proposed so that it shall be possible to simply check and clean relevant
pipelines during the shut-down. A relevant method shall be sufficiently described in the bid. We also require
that the bid includes a specification of materials proposed for the pipe systems.
The Client prefers applying an electric and pneumatic control system for the fittings. The fitting control system
shall use compressed air from the new Compressor Station – see Sub-Operating Set DPS 10.06.
Within the Mechanical Technology Part, we expect the equipment to include at least the following deliveries,
assemblies and activities:
 Machinery and equipment
 Desulfurization product conveyors, (screw conveyors or any other mechanical conveyors) if
designed by the Bidder within this Sub-Operating Set;
 Pipelines and fittings
 All pipe sections - delivery and assembly of conveying pipelines – if designed by the Bidder;
the conveying air piping is the subject of Sub-Operating Set DPS 10.08..05 Process Air Piping,
Flanges, Transition Pieces, Expansion Bends, Pipe Fittings.
 Fittings - delivery and assembly of relevant shut-off and control fittings, including drives, safety
valves and non-return flap valves;
 Welded-on pieces, pulse piping and other accessories for I & CS;
 Steel structures and fitting products (staircases, ladders, footbridges, handrails).
DPS 10.10.01/Part 02 Heavy-Current Equipment and Distribution Lines
The requirements for the scope and engineering design of this Sub-Operating Set are the same as in the case
of Sub-Operating Set DPS 10.09.02 Sorbent Conveyance to Day Silo - Part 02 Heavy-Current Equipment and
Distribution Lines.
DPS 10.10.01/Part 03 Instrumentation and Control System (I & CS)
The requirements for the scope and engineering design of this Sub-Operating Set are the same as in the case
of Sub-Operating Set DPS 10.09.02 Sorbent Conveyance to Day Silo - Part 03 Instrumentation and Control
System.
3.3.2.1.8.2 DPS 10.10.02 – Desulfurization Product Storage Silo
The desulfurization product silo shall store desulfurization products from all the three desulfurization units of
Boilers K14÷K12.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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DPS 10.10.02/Part 01 Mechanical Technology Part
The silo shall be fitted with required equipment, i.e., aeration equipment, desulfurization product level
measuring equipment, ladder, operating platform, handrails, tank truck loading equipment, etc. The silo (s)
shall be accessible through a steel staircase protected by hot-galvanized coating against atmospheric
influences. The silo shall be deaerated by means of filter equipment and exhaust fan so that it shall meet the
requirement for the maximum solid particle concentration of up to 10 mg/m³. The aeration equipment filter shall
be mounted directly to the upper cover of the silo. The silo shall be secured against an excessive overpressure
by safety valves in the event that the silo is overloaded or the filter is clogged. The silo shall include equipment
securing it against any overloading or overfilling, including a local audible alarm system signaling the highest
possible level in the silo (i.e., emergency limit). It shall also be secured against any excessive negative
pressure during the unloading.
We require that all the mass of the stored product is set in motion if the unloading hole opens and starts sliding
along the silo walls without forming any adhered sections, arches or core flow. For this purpose, the silo shape
shall be suitably designed, the internal surfaces shall be lined with suitable materials and purification shall be
applied. We require that the Bidder specifies the proposed design. In its bid, the Bidder shall also specify a
paint system of the silo (type, thickness…), including explanation of the suitability of the given system
application. The bid shall also specify actions to be taken against any agglomeration of the preparation (due to
moisture), as well as the period of permitted sorbent storage in the silo.
We also require that the Bidder proposes a design to prevent any leak of the desulfurization product in any
form into surface or underground water or receiving Sewer F or any ground contamination. The proposed
design shall be described in the bid.
The silo shall be easily accessible by trucks. The connection point designated for the desulfurization product
unloading shall be located under the silo and shall be designed in a way similar to that of the existing silos.
There shall be a gravity unloading system, where the unloading shall be ensured by an outside contractor so
as to be possible to drive a truck up in front of the silo. The desulfurization product unloading from the silo shall
continue to be controlled from the unloading location. Such control shall continue to be performed by an
outside contractor using a suspension controller fitted with a flexible cord. At least the following push buttons
shall be preserved on the controller:




Put the nozzle down
Start the loading
Put the nozzle up
Emergency stop
Within the Mechanical Technology Part, we expect the equipment to include at least the following deliveries,
assemblies and activities:
 Machinery and equipment
 Desulfurization product storage silo;
 Filter unit at the desulfurization product storage silo;
 Desulfurization product discharge equipment;
 Conveying equipment (screw conveyors, pneumatic conveying equipment or any other similar
equipment) designated for conveying the desulfurization product within this Sub-Operating Set;
 Pipelines and fittings
 All pipe sections - delivery and assembly of piping, drain piping, flanges, transition pieces,
expansion bends and pipe fittings;
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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TOTAL PAGES:
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
Fittings - delivery and assembly of relevant shut-off and control fittings, including drives, safety
valves and a non-return flap valve;
 Welded-on pieces, pulse piping and other accessories for I & CS;
 Steel structures and fitting products (staircases, ladders, footbridges, handrails).
The silo shall be designed so that in the case of a failure it shall be possible to simply and safely empty it
through connected conveying equipment into closed containers or vessels. Such containers or vessels shall
not be included in the bid.
DPS 10.10.02/Part 02 Heavy-Current Equipment and Distribution Lines
The silo equipment shall be fitted with new electrically controlled drives, fittings and other instruments to the
extent of the Bidder’s proposal so that the equipment operation shall require minimum interventions by the
operator.
The new drives and other electrical equipment shall be connected through new cabling to the new Switchgear
RM-85, (see Operating Set PS 10.12 Heavy-Current Equipment and Distribution Lines).
The process equipment drives shall be remote-controllable from the K14 (K13, K12) Boiler Operator Station.
The feeding and conveying equipment drives, such as turnstiles and screw conveyors, shall also be locally
controllable from local control boxes with a reverse running mode option. In the case of equipment where it is
necessary to smoothly change the medium flow, the drive speed shall be controlled by frequency converters.
The cables shall be laid on new cable structures (cable trays and racks). The structure surface shall be hotgalvanized. Within the heavy-current equipment and distribution lines, we expect the equipment to include at
least the following deliveries, assemblies and activities:
 delivery and assembly of new drives and other electrical equipment, as designed by the Bidder;
 delivery and assembly of relevant new power supply and control cabling, cable lines, supporting
and connecting elements;
 delivery and assembly of control boxes, coupler boxes and revamping boxes, control and signaling
elements, as designed by the Bidder;
 delivery and assembly of any other equipment designated for reliable and safe operation of the
modified process equipment.
DPS 10.10.02/Part 03 Instrumentation and Control System (I & CS)
This shall include process equipment designated for continuous level measurement with an output of 4-20 mA.
The measuring equipment shall also be fitted with a local indicator. The measurement scope shall be given by
the storage silo dimensions and structural arrangement. To determine the reached maximum level (i.e.,
Emergency Limit I), a suitable binary (contact) level sensor, including a local audible signal system, shall be
delivered and installed at the silo. To determine the reached minimum level (i.e., Emergency Limit II), a
suitable binary (contact) level sensor, including a local audible signal system, shall be delivered and installed
at the silo. The fittings shall be provided with condition control and signaling equipment allowing both the local
control and remote control from a relevant Operator Station. The values and parameters mentioned below
shall be displayed locally on site and remotely in the Operator Station.
Within this Sub-Operating Set, it is expected that at least the following measurement shall be carried out:
 delivery and installation of analogue level indicators;
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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delivery and installation of binary maximum level indicators;
delivery and installation of minimum level indicators;
delivery and installation of a pressure gauge at the compressed air distribution pipeline;
delivery and installation of a signaling system for the silo loading equipment;
delivery and installation of a signaling system for the silo unloading equipment;
delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting cable elements;
 construction of access platforms and ladders for the newly installed measuring equipment unless it
is possible to use the existing measuring equipment;
 delivery and assembly of control boxes, coupler boxes, control and signaling elements;
 delivery and assembly of any other equipment designated for reliable and safe operations of the
proposed process equipment.
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
3.3.2.1.9 PS 10.11 Industrial Vacuum Cleaner
We require that a new industrial vacuum cleaner is delivered and installed within the work subject. The
industrial vacuum cleaner shall be used for removing dust and granular particles from the areas in the
buildings and around the process equipment specified below:
1. In the desulfurization unit building (Building Object SO 10.102). In particular, this shall include the
areas around the fabric filter, reactor and other equipment where flue gases are desulfurized, and
possibly also in the indoor areas where the sorbent and desulfurization product are handled and
conveyed;
2. In the areas of the Ca(OH)2 silo (Sub-Operating Set DPS 10.09.03). In particular, this shall include the
areas under the silo and conveying equipment;
3. In the areas of the main sorbent storage silo (Sub-Operating Set DPS 10.09.01). In particular, this
shall include the areas under the silo and conveying equipment;
4. In the areas of the fly ash silos, the existing system shall be extended due to the desulfurization
product silo installation.
Within the work, a separate industrial vacuum cleaner unit shall be delivered for each desulfurization unit.
PS 10.11/Part 01 Mechanical Technology Part
The scope of the industrial vacuum cleaner equipment, (i.e., number of vacuum units, number of connection
points for each unit and total number of locations cleaned with the vacuum cleaner, number of collecting
vessels etc.), in the above-mentioned areas shall be proposed by the Bidder on the basis of its technology and
design of the individual buildings.
The industrial cleaner units shall be fitted with appropriate equipment, i.e., filter units, filter medium recovery
equipment, vacuum hoses, adapting pieces, branch sections, etc. We require that the bid includes a
specification of the proposed equipment and its manufacturer.
The Bidder shall design the distribution system and location of connection points for the vacuum hoses of the
individual industrial vacuum cleaner units. The location of the connection points shall be designed so as to
reach the cleaning of the above-mentioned areas by adding gradually the industrial vacuum cleaner hoses. We
require that at least 2 (two) vacuum hoses are delivered with a minimum length of 10 m for each of the abovementioned areas. Each unit shall be designed and installed so as to allow cleaning with 2 (two) vacuum hoses
connected in parallel. The Bidder shall propose the dust collection and disposal method in its bid.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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TOTAL PAGES:
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The industrial cleaner units must also be designed so that their noise level shall comply with the applicable
legal limits set out in the Czech National Standards. The units shall be controlled on site. The bid shall specify
input power (kW) for each unit.
Within the Mechanical Technology Part, we expect the equipment to include at least the following deliveries,
assemblies and activities:
 Machinery and equipment:
 vacuum units, including drives
 hoses
 collecting vessels
PS 10.11/Part 01 Heavy-Current Equipment and Distribution Lines
If the Bidder designs for example any electric drives of fans within this Operating Set, then such drives shall be
connected through new cabling to the new Switchgear HR-04-44, (see Operating Set PS 10.12 Heavy-Current
Equipment and Distribution Lines). The process equipment drives shall be controllable from local control
boxes. The cables shall be laid on new cable structures (cable trays and racks). The structure surface shall be
hot-galvanized.
Within this Operating Set (Heavy-Current Equipment and Distribution Lines), we expect the equipment to
include at least the following deliveries, assemblies and activities:
 delivery and assembly of drives and other electrical equipment, as designed by the Bidder;
 delivery and assembly of relevant power supply and control cables, cable lines, supporting and
connecting elements;
 delivery and assembly of control boxes, coupler boxes and revamping boxes, control and signaling
elements, as designed by the Bidder;
 delivery and assembly of electrically controlled drives of fittings and other electrically controlled
equipment;
 delivery and assembly of any other equipment for reliable and safe operation of the delivered
process equipment.
PS 10.11/Part Instrumentation and Control System (I & CS)
Depending on a specific industrial vacuum cleaner type and requirements for its technical equipment, I & CS
elements and possibly also separate switchboards shall be installed for the industrial vacuum cleaner.
Within this Operating Set (Heavy-Current Equipment and Distribution Lines), we expect the equipment to
include at least the following deliveries, installations and activities, which shall meet the requirements for this
system, as specified in the above-mentioned description of the Operating Set:
 delivery and installations of relevant I & CS elements, switchboards, cables and other equipment
necessary for the industrial vacuum cleaner installation.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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TOTAL PAGES:
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3.3.2.1.10 PS 10.12 Heavy-Current Equipment and Distribution Lines
Within the work subject, we require that the new electrical equipment described in this Operating Set is
delivered and assembled.
3.3.2.1.10.1 DPS 10.12.01 Transformers
Phase I:
Transformer T 635
The new Transformer T 635 shall be installed in the K14 desulfurization unit building. It shall be fenced with a
removable barrier, (metal fencing with mesh – protective barrier), which shall be built in compliance with the
applicable codes and standards. In the case of lack of space, it shall be possible to deliver the transformer in a
closed cabinet, whose type shall correspond to the delivered transformer.
The primary side of the new transformer shall be connected through a new 6 kV cable from Bay 8 of
Substation R6-14. Surge voltage protectors shall be delivered and installed on the transformer foundation
structure.
The secondary side of the new transformer shall be connected in new Substation HR-04-44 to a new copper
cable, whose dimension shall be adapted to the connection clamps of the new transformer and new
substation.
The HV/LV transformer shall be a dry-type transformer, with IP 00 coverage, (in a cabinet for indoor
installation). Its design shall be as follows:
This shall be a dry-type industrial transformer cast in resin with certification under ISO 9001, manufactured
under ČSN EN 60076-1+A11, with reduced losses for indoor installation, maximum ambient temperature of no
more than +40°C, maximum installation height above sea level of 1,000 m, S1 continuous load.
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maintenance-free
moisture-proof
hard-inflammable and self-extinguishable
resistant to surge voltage and short-circuit
resistant to thermal shock - instantaneous heating from dead condition (– 25°C) – Climate Class C2
without partial discharge
Equipment and Accessories
 lifting eyes
 rating plate
 grounding bolts
 castors adjustable for longitudinal and cross travel
 HV connection of Cu location
 LV connection of Cu location
 rated power
:
 primary voltage
:
 primary side taps
:
 off-load secondary voltage
:
 frequency
:
 number of phases
:
 Coverage Class
:
 location
:
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
as designed by the Bidder
as designed by the Bidder
as designed by the Bidder
6,000 V
+/- 2x2.5%
400 V
50 Hz
3
IP 00
Indoor
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report

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Connection Group
ambient temperature
max. off-load losses
short-circuit voltage
cooling
Heating Class (HV/LV)
Flammability Class
Environment Influence Class
Climate Class
primary winding
secondary winding
:
:
:
:
:
:
:
:
:
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Dyn1
40 °C
reduced
6%
AN
F/F
F1
E2
C2
Al (Cu)
Al (Cu)
We require that it is possible to immediately switch on the transformer from its dead condition at a temperature
of minus 25 °C. The transformer shall be equipped with temperature monitoring sensors fitted with a two-stage
signaling system (first stage – temperature increase, second stage – transformer disconnection). The signals
shall be transmitted through a cable to the relevant bay of R 6kV Substation, where they shall be connected to
the RTU (Substation Monitoring System) Module inlet. Through the RTU, the temperature monitoring shall be
visualized in the Electrical Control Room.
Moreover, both sides of the transformer shall be equipped with grounding bolts (shorting ball point type:
161035-0002), and the 6 kV inlets shall be fitted with surge voltage protectors.
The relevant Sub-Operating Set (DPS) shall include a proper speciation of the offered transformer (best in the
form of Engineering Sheets) setting forth parameters, manufacturer and country where the transformer is
manufactured. The Client requires that the transformer is manufactured in Europe.
The expected minimum scope of activities shall be as follows:
 delivery and installation of the new transformer;
 delivery and connection of required cables;
 installation and connection of the existing surge voltage protectors;
 performance of function and voltage tests as per a testing schedule;
 commissioning of the whole equipment.
T 635 Measuring System
The transformer shall be equipped with a protection system (thermostat, etc.) monitoring the transformer
operation temperature. Any exceeding of the transformer operation temperature shall be signaled at two
stages. The first stage shall be designated for warning, and the other stage shall ensure that the relevant
transformer is disconnected along with relevant signal. The automatic disconnection (i.e., trip) shall be part of
the work.
Two-stage signals of exceeding the maximum transformer operation temperature shall be transmitted through
a new cable to Substation R6-14, more specifically to the RTU unit inlet side, which shall be extended by new
inlets if need be.
The expected minimum scope of activities shall be as follows:
 delivery and installation of new measuring circuits of the transformer, including accessories;
 connection of new cables of the transformer measuring circuits to the RTU unit;
 delivery and commissioning of the new RTU unit;
 set-up and function tests of the signaling system, including disconnection;
 commissioning of the whole equipment.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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Phase II:
This section only describes changes from the requirements set out for Phase I.
Transformer T 636
The new Transformer T 636 shall be installed in the K13 desulfurization unit building.
The primary side of the new transformer shall be connected through a new 6 kV cable to Bay 9 of Substation
R6-13.
Phase III
This section only describes changes from the requirements set out for Phase I.
Transformer T 637
The new Transformer T 637 shall be installed in the K12 desulfurization unit building.
The primary side of the new transformer shall be connected through a new 6 kV cable to Bay 3 of Substation
R6-12.
The T602 cable outgoing from Bay 3 shall be relocated to Substation R6-P.
3.3.2.1.10.2 DPS 10.12.02 6 kV Substation (s)
Phase I:
Modifications to Substation R6-14 for Transformer T 635
In Bay 9 of Substation R6-14, a new outlet from the substation busbars shall be established for Transformer T
635. This shall include the delivery of a System A and B disconnector, switch, instrument current transformer,
power interconnection system in the cubicle, including shorting points, control box, digital protection, including
connection. The following loops shall be disconnected and reconnected in the control box: (i) power supply
loops for the control system, and (ii) power supply loops for electric drives of the disconnectors and substation
protections. The protections shall be set up for the parameters set out in the Design Documentation.
Data of measurement and operating conditions (including two-stage signals of exceeding the maximum
operating temperature of Transformer T 635) shall be transmitted to the inlet side of the new RTU station.
Protections, Disconnectors, Breaker and Instrument Current Transformer
In Bay 9 of Substation R6-14, there shall be a REF-type digital protection. The new protection shall be
designed, installed and set up in compliance with the Design Documentation. The new protection shall be
connected to the protection input measuring circuits. Power supply for the protections shall be secured by a
separate circuit breaker, which shall be fed from a 220V DC loop and shall not be connected through the bay
disconnection protection pack. To minimize the movement of the protection itself and maintenance of any
other equipment in the bay, we require that the protection is arranged in a board. The door shall include a sight
hole for performing visual checks and monitoring the parameters without opening the door. The sight hole shall
be provided with a frame for safety reasons (due to sharp edges).
Delivery of 2 (two) new disconnectors. The disconnectors shall be sized for 630 A with a 400 V AC electric
drive. The drives shall be supplied from a 400 V AC loop. At present, the substation includes QAK
7.630.25.ML.1.11.FE.200 disconnectors with a 400 V AC electric drive.
Delivery and installation of a new vacuum circuit-breaker VD4, including a new connection to the busbar. The
new vacuum circuit-breaker shall be installed on an elevated structure, and the removable barrier shall be
arranged in the same way as in the case of Bay 12 in Substation R6-14.
There shall be three two-core instrument current transformers.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
52
TOTAL PAGES:
118
Modifications to Substation R6-14 for Booster Induced-Draft Fan
In Bay 10 of Substation R6-14, there shall be new outlets of the substation busbars for the booster induceddraft fan – delivery of an A and B system disconnector, breaker, instrument current transformer, power
interconnection in the cubicle, including installations of shorting points, control box and digital protection,
including connection. The following loops shall be disconnected and reconnected in the control box: (i) power
supply loops for the control system, and (ii) power supply loops for electric drives of the disconnectors and
substation protections. The protection shall be set up for the parameters set out in the Design Documentation.
Data of measurement and operating conditions shall be transmitted to the inlet side of the new RTU station.
Protections, Disconnectors, Breaker and Instrument Current Transformer
Bay 10 of Substation R6-14 shall include a REM-type digital protection. The new protection shall be designed,
installed and set up in compliance with the Design Documentation. The new protection shall be connected to
the protection input measuring circuits. Power supply for the protection shall be secured by a separate circuit
breaker, which shall be fed from a 220V DC loop and shall not be connected through the bay disconnection
protection pack. To minimize the movement of the protection itself and maintenance of any other equipment in
the bay, we require that the protection is arranged in a board. The door shall include a sight hole for
performing visual checks and monitoring the parameters without opening the door. The sight hole shall be
provided with a frame for safety reasons (due to sharp edges).
Delivery of 2 (two) new disconnectors. The disconnectors shall be sized for 630 A with a 400 V AC electric
drive. The drive shall be supplied from a 400 V AC loop. At present, the substation includes QAK
7.630.25.ML.1.11.FE.200 disconnectors with a 400 V AC electric drive.
Delivery and installation of a new vacuum circuit-breaker VD4, including a new connection to the busbar. The
new vacuum circuit-breaker shall be installed on an elevated structure, and the removable barrier shall be
arranged in the same way as in the case of Bay 12 in Substation R6-14.
There shall be three dual-core instrument current transformers.
The expected minimum scope of activities shall be as follows:
 Disassembly, liquidation:
 liquidation of all idle equipment in Bays 9 and 10.
 Delivery and installation:
 delivery and installation of new protections, disconnector, breakers and instrument current
transformer;
 connection of the input measuring circuits;
 set-up of new protection parameters;
 issuance of the Set-Up Protocol;
 function testing;
 commissioning of the whole equipment.
Measurement, Visualization, Signaling
Signals of the existing and new, extended measuring systems, operating conditions of the new protection and
any other existing signals and commands in the cubicle shall be transmitted to the newly delivered RTU
modular units. Such units shall transmit the data of the extended measuring systems and operating conditions
to the Operator Station of the Micro-Dispatch Center in the Electrical Control Room, where they shall be
optically and acoustically signaled.
The expected minimum scope of activities shall be as follows:
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
53
TOTAL PAGES:
118
 delivery and installation of new measuring circuits of the new protection, including accessories;
 delivery and installation of a new RTU unit;
 connection of the existing signals, commands and new measuring circuits of the new protection to
RTU;
 setting-up and function testing of the signaling system, including switching-off;
 commissioning of the whole equipment.
Electrical Control Room, Micro-Dispatch Center Control System
The control, visualization signaling, measurement and monitoring of the operating conditions in the Operator
Station in the Electrical Control Room shall be extended, at least to the extent of the other bays of the
substation, by new measurement in Bays 9 and 10 of Substation R6-14, as well as by new measurement of
the T 635 temperature.
The installation in this area shall be located in the existing SW equipment of the Operator Station of the
Electrical Control Room.
SW Equipment Extension
The existing SW equipment of the Operator Station of the Electrical Control Room shall be extended in
connection with the installations of RTU modular units to the extent of the extension performed in compliance
with the Bidder’s Design Documentation.
The expected minimum scope of activities shall be as follows:
 delivery and installation of the extended SW (if need be, including a license);
 setting-up and function testing;
 commissioning of the whole equipment.
Phase II
This Section only describes the changes from the requirements set out for Phase I.
Modifications to Substation R6-13 for Transformer T 636
In Bay 9 of Substation R6-13, a new outlet shall be established for T 636.
Modification to Substation R6-13 for the Booster Induced-Draft Fan
In Bay 10 of Substation R6-13, a new outlet shall be established for the booster induced-draft fan.
Phase III:
This Section only describes the changes from the requirements set out for Phase I.
Modifications to Substation R6-12 for Transformer T 637
The T602 cable line shall be relocated from Bay 3 of Substation R6-12 to Substation R6-P. This bay shall
supply power for Transformer T 637.
In Bay 3 of Substation R6-12, the existing outlet protections shall be replaced by a new digital protection. The
new protection shall be set up for the parameters set out in the Design Documentation. The bay shall be
refurbished to the extent caused by the said replacement.
The existing measurement scope and operating conditions of the monitored Bay 3 equipment shall be
preserved, and data of the new measurement and operating conditions (including the two-stage signaling of
the exceeding of the maximum operating temperature of Transformer T 637) shall be transmitted to the inlet
side of the new RTU unit.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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TOTAL PAGES:
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The existing protections, breaker and instrument current transformer in Bay 3 shall be disconnected from all
the equipment and shall be removed and liquidated. Moreover, all idle parts of the equipment and protection
input measuring circuits shall also be removed and liquidated.
New Protection, Breaker and Instrument Current Transformer
In Bay 3 of Substation R6-12, the existing protections shall be dismantled and replaced by a new REF-type
digital protection system. The new protection system shall be designed, installed and set up in compliance with
the Design Documentation. The existing protection input measuring circuits shall be connected to the new
protection. Power supply for the protection system shall be secured by a separate circuit breaker, which shall
be fed from a 220V DC loop and shall not be connected through the bay disconnection protection pack. To
minimize the movement of the protection itself and maintenance of any other equipment in the bay, we require
that the protection is arranged in a board. The door shall include a sight hole for performing visual checks and
monitoring the parameters without opening the door. The sight hole shall be provided with a frame for safety
reasons (due to sharp edges).
The existing breaker shall be replaced by a new vacuum circuit-breaker VD4, including a new connection to
the existing busbars in the bay. The new vacuum circuit-breaker shall be installed on an elevated structure,
and the removable barrier shall be arranged in the same way as in the case of Bay 9 in Substation R6-12.
The existing instrument current transformers shall be replaced by 3 (three) new dual-core instrument current
transformers.
The expected minimum scope of activities shall be as follows:
 Disassembly and liquidation:
 disconnection and disassembly of the existing protections, breaker and instrument current
transformer;
 disconnection and disassembly of the other idle equipment;
 liquidation of all idle equipment.
 Delivery and installation
 delivery and installation of the new protection system, breaker and instrument current
transformer;
 connection of the existing input measuring circuits;
 set-up of new protection parameters;
 Issuance of the Set-Up Protocol;
 function testing;
 commissioning of the whole equipment.
Measurement, Visualization, Signaling
Signals of the existing and new, extended measuring systems, operating conditions of the new protection and
any other existing signals and commands in the cubicle shall be transmitted to the newly delivered RTU
modular units, which shall replace the existing MCS Stations. Such units shall transmit the data of the
extended measuring systems and operating conditions to the Operator Station of the Micro-Dispatch Center in
the Electrical Control Room, where they shall be optically and acoustically signaled.
The expected minimum scope of activities shall be as follows:
 delivery and installation of new measuring circuits of the new protection system, including accessories;
 delivery and installation of the new RTU unit;
 connection of the existing signals, commands and new measuring circuits of the new protection
system to the RTU unit;
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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TOTAL PAGES:
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 setting-up and function testing, including disconnection;
 commissioning of the whole equipment.
Electrical Control Room, Micro-Dispatch Center Control System
The visualization of measurement and operating conditions in the Operator Station in the Electrical Control
Room shall be extended by new measurement in Bay 3 of Substation R6-12, as well as by new measurement
of the T 637 temperature. The installation in this area shall be located in the existing SW equipment of the
Operator Station of the Electrical Control Room.
SW Equipment Extension
The existing SW equipment of the Operator Station of the Electrical Control Room shall be extended in
connection with the installations of RTU modular units to the extent of the extension performed in compliance
with the Bidder’s Design Documentation.
The expected minimum scope of activities shall be as follows:
 delivery and installation of the extended SW (if need be, including a license);
 setting-up and function testing;
 commissioning of the whole equipment.
Modifications to Substation R6-12 for the Booster Induced-Draft Fan
In Bay 13 of Substation R6-12, a new outlet shall be established for the booster induced-draft fan.
Modifications to Substation R6-P for Relocation of Transformer T602 Cabling (Bay 29)
The bay and control box equipment, i.e., breaker, measuring transformers, circuit breakers, relays and
protection, shall be completely replaced. The door of the control box in the substation shall be fitted with
control and signaling elements for local control and single-phase current measuring equipment.
New cards in the existing MCS unit shall be used for measurement and signal transmission. The MCS unit
shall be connected through flexible conductors with sufficient redundant space allowing the plate to be ejected.
The Bidder shall add new equipment to the extent necessary.
It shall be possible to control the breaker from the Micro-Dispatch Center control system and locally from the
substation.
The Bay 29 equipment shall be monitored and relevant data, (i.e., condition of the breakers, carriages, circuit
breakers, fault conditions, signals for the protections, etc.), shall be signaled through the MCS modules to the
Micro-Dispatch Center control system as per the developed Design Documentation.
The measurement in the Micro-Dispatch Center control system shall be carried out to the following extent:
 three-phase active power P-measurement;
 three-phase reactive power Q-measurement;
 voltage U-measurement – measurement of delta voltage on the voltage loops between individual
bays;
 one-phase current I-measurement.
The expected minimum scope of activities shall be as follows:
 delivery and assembly of complete T602 outlet equipment, including measuring transformers and
breaker;
 delivery and assembly of new connections to the Micro-Dispatch Center;
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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 delivery and assembly of new MCS cards and a system monitoring the condition of the installed
process equipment;
 delivery and assembly of the REF 610 protection for Transformer T602, including connection and
set-up as per a protection set-up calculation.
3.3.2.1.10.3 DPS 10.12.03 Switchgears
Phase I:
Switchgear HR 04-44
The switchgear, locally designated as HR-04-44, shall be installed in the K14 desulfurization unit building. The
switchgear shall be designed and installed so as to provide redundant space for a potential extension of the
switchgear. Cables shall be routed to the switchgear from the bottom and shall be conveniently located under
the elevated floor on cable racks without any unnecessary crossing.
New cables supplying power for Switchgear HR-04-44 shall be routed from the secondary side of the new
Transformer T635 and back-up power supply line from Bay 6 of Switchgear HR-04-24.
The switchgear shall be installed in a cabinet and its coverage shall be at least IP 54/IP 00. In the upper
section of the switchgear, there shall be copper busbars. The current and short-circuit parameters of the
switchgear shall be sized for the full capacity of one power supply inlet. The cabling shall be routed to the
switchgear from the bottom. The switchgear inlet bays shall include at least (i) three-phase current measuring
equipment and busbar voltage measuring equipment with an option to switch phase / delta voltage, (ii) control
unit and (iii) closing / opening signaling system.
The inlet bays shall be equipped with a manually controlled disconnector and withdrawable incoming-feeder
circuit-breaker fitted with electronic release, terminals and other instruments (fuse disconnectors, etc.) under
the Design Documentation.
The incoming power supply line from the transformer and the back-up power supply line shall only be
controlled locally from the switchgear door with an option of short-term parallel running without any switchgear
trip in the event that the power supply lines are handled. The parallel closing option shall be implemented
through the unlocking push-button. Within the common connection, the switchgear shall be operated so that it
shall be powered by Transformer T635.
To secure the outlets, fuse disconnectors shall be used, and the fuse disconnectors shall be supplemented
with circuit breakers if need be, (this shall be specified by the design). The motors with a power of above 20kW
shall be protected through x/1A current measuring transformers. The switchgear shall include transmission
relays for communication with the process equipment control system.
Switchgear HR-04-44 shall supply power for the outlets designated for the K14 desulfurization unit, K14 fabric
filter, flue gas duct, High-Pressure Air Station and Low-Pressure Air Station.
The expected minimum scope of activities shall be as follows:
 Delivery and assembly;
 outlet installation in Switchgear HR04-24 (Bay 6) for back-up power supply line;
 delivery and assembly of equipped Switchgear HR-04-44 cabinets;
 delivery and assembly of power and control cabling;
 delivery and assembly of new cable lines, including auxiliary structures and trays.
Switchgear RM-85
The switchgear, locally designated as RM-85, shall be installed in the K14 desulfurization unit building. The
switchgear shall be designed and installed so as to create redundant space for a potential extension of the
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
57
TOTAL PAGES:
118
switchgear. The inlet and outlet cables shall be routed to the switchgear from the bottom and shall be
conveniently located under the elevated floor on cable racks without any unnecessary crossing.
The switchgear shall be installed in a cabinet and its coverage shall be at least IP 54/IP 00. In the upper
section of the switchgear, there shall be copper busbars. The current and short-circuit parameters of the
switchgear shall be sized for the full capacity of one power supply inlet with a 15% redundancy. The
switchgear inlet bays shall include at least (i) single-phase current measuring equipment at the individual inlets
and (three-phase) busbar voltage measuring equipment with an option to switch phase / delta voltage, (ii)
control unit and (iii) closing / opening signaling system.
The switchgear shall be powered by Switchgear HR-04-24 (Bay 2 and Bay 6) through two new power supply
lines. In normal operation, the switchgear shall receive power from one power supply line, while the other
power supply line shall be in stand-by condition.
The inlet bays shall be equipped with a manually controlled disconnector and a telescopic inlet circuit breaker
with electronic release, clamps and other instruments (fuse disconnectors etc.) under the Design
Documentation.
The incoming power supply lines shall only be controlled locally from the switchgear door with an option of
short-term parallel running without switchgear trip when any handling of the incoming power supply lines is
performed. The option of parallel running shall be switched through the unlocking push-button.
The outgoing lines from the process equipment shall be connected through fuse disconnectors to the busbars.
The outgoing lines shall be secured by fuse disconnectors, which shall be supplemented with circuit breakers
and other instruments as per the outgoing line type (to be defined by the design). The motors with a power of
above 20 kW shall be protected through x/1A current measuring transformers.
The switchgear shall include transmission relays for communication with the process equipment control
system.
Switchgear RM-85 shall supply power for the outlets for the common equipment of the K12 – 14
desulfurization unit, (i.e., CaO main storage silo, desulfurization product silo, mixing center, etc.).
The expected minimum scope of activities shall be as follows:
 Delivery and assembly
 outlet installations in Switchgear HR-04-24 (Bays 2 and 6);
 delivery and assembly of equipped RM-85 switchgear cabinets;
 delivery and assembly of power and control cables;
 delivery and assembly of new cable lines, including auxiliary structures and connection trays,
testing and commissioning.
Switchgear RO-14-6
This shall be a new switchgear locally designated as RO-14-6, which shall be installed in the K14
desulfurization unit building.
In its upper section, the switchgear shall be equipped with copper busbars. Cabling shall be brought to the
switchgear from the bottom. The switchgear shall be installed in a cabinet and its coverage shall be at least IP
54/IP 20.
Switchgear RO-14-6 shall be powered by Switchgear RO-14 through a new (AC) power supply line. For the
purpose of 220 V DC power supply, there shall be a power supply line from Switchgear RO-14, DC section. In
the switchgear, a switch group shall be established for emergency lighting. The emergency lighting shall be
automatically switched on in the case of any loss of 400 V AC at the switchgear busbars. The switchgear shall
include a switch allowing the emergency lighting to be checked. The switchgear DC section shall form a
separate bay.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
58
TOTAL PAGES:
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Switchgear RO-14-6 shall supply power for the socket and lighting circuits (including the emergency lighting) of
the K14 desulfurization unit building, including outdoor areas related to the given technology.
The expected minimum scope of activities shall be as follows:
 Delivery and assembly
 outlet installations in AC and DC sections of Switchgear RO-14;
 delivery and assembly of the switchgear;
 delivery and assembly of power cabling;
 cable installations.
Phase II:
This Section only describes the changes from the requirements set out for Phase I.
Switchgear HR 04-43
This switchgear, locally designated as HR-04-43, shall be installed in the K13 desulfurization unit building.
New cables feeding Switchgear HR-04-43 shall lead from the secondary side of Transformer T636 and backup inlet of Substation HR-04-24 (Bay 2).
Switchgear RO-13-4
This shall be a new switchgear locally designated as RO-13-4, which shall be installed in the K13
desulfurization unit building.
Switchgear RO-13-4 shall be powered by Switchgear RO-13 through a new (AC) power supply line. For the
purpose of 220 V DC power supply, a new power supply line from the DC section of Switchgear RO-13 shall
be installed.
Phase III
This Section only describes the changes from the requirements set out for Phase I.
Switchgear HR 04-42
This switchgear, locally designated as HR-04-42, shall be installed in the K12 desulfurization unit building.
New cables feeding Switchgear HR-04-42 shall lead from the secondary side of the new Transformer T637
and back-up inlet of Substation HR-04-24 (Bay 2).
Switchgear RO-12-3
This shall be a new switchgear locally designated as RO-12-3, which shall be installed in the K12
desulfurization unit building.
Switchgear RO-12-3 shall be powered by Switchgear RO-12 through a new (AC) supply line. For the purpose
of 220 V DC power supply, a new power supply line from the DC section of Switchgear RO-12 shall be
installed.
3.3.2.1.10.4 DPS 10.12.04
Cabling and Cable Lines
The individual drives, electrical equipment and I & CS shall be interconnected through all-plastic copper CYKY
cabling.
Shielded all-plastic copper cabling shall be used for I & CS cabling.
In the switchgear or cabinet, the cables must be connected to separating clamps (in the inlet holes) and must
not be directly connected to the terminals of the instruments installed in the switchgear.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
59
TOTAL PAGES:
118
I & CS cables shall preferably run through MARS cable ducts and armored conduits separately from power
cabling.
If a communication cable is used, we require that it runs through a separate cable duct and is marked in color
(yellow). The cable duct may also include a potential power supply cable for the converter.
Power cables shall run on cable trays. At the end of the cables, there shall be wire markers indicating the
cable number, cable start point, cable end point and cable type.
All the cable lines shall run on hot-galvanized structures or in galvanized ducts and shall be fixed by means of
galvanized supporting structures. If cables are connected to the existing equipment, it is necessary to refurbish
the fire resistant cavity fillers and make new fire resistant cavity fillers between the fire compartments of the
newly installed switchgears and cables.
3.3.2.1.10.5 DPS 10.12.05
Pipe Grounding
All new heavy-current equipment, distribution systems and piping shall be connected to the existing grounding
network of the plant and newly installed grounding network under the desulfurization unit.
3.3.2.1.11 PS 10.13 Control System
We expect that the existing redundant control system of Boiler K14 (K12, K13) located in the K14 control
system substation (Boiler House, an elevation point of approximately 12 m behind Boiler K14) shall be
extended by new redundant input / output modules (distributed I/O). The existing application SW shall be
extended to the extent necessary.
For the new process equipment control and monitoring, it shall also be possible to design and deliver a new
autonomous, fully redundant control system with a new system and application SW. Such an autonomous
control system must ensure mutual communication and data distribution with the existing K14 (K12, K13)
control systems.
In the desulfurization unit buildings, Substations HR-04-44 (HR-04-42, HR-04-43) and RM-85 shall be built.
Switchgears with new control system components shall be located in the new substations as follows:

switchgears with control system components for an individual section of the desulfurization unit
relating to Boiler K14 or K13 or K12 shall be installed in Substations HR-04-44 or HR-04-42 or HR-0443 respectively;

switchgears with control system components for the common section of the desulfurization process
equipment, such as storage silos, mixing center, etc., shall be installed in the new Substation RM-85
of the desulfurization unit.
I & CS field cables and possibly any other process cabling shall be routed to the new redundant modules
(distributed I/O). On the input / output cards, there shall be a 15% margin for each signal type (AI, AO, BI, BO).
24VDC / 230VAC transmission relays shall be installed in Switchgears HR-04-44 (HR-04-42, HR-04-43) and
RM-85.
The control system shall monitor and control the technology circuits and shall be equipped with necessary
application and system software, including relevant licenses. All system variables shall be marked by means of
KKS coding.
The concept of the control system and related technologies shall be designed so that it shall be possible to
operate the whole process equipment in the local control mode in the event that there is a failure of the
automated control system or a failure that disallows the process equipment to be controlled from the relevant
Operator Stations.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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TOTAL PAGES:
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The control system shall ensure that the operation is optimally controlled and operator’s interventions are
reduced to a minimum level. It must also ensure a basic handling of operating conditions and other general
processes, as required by the technology itself. More specifically, the control system shall ensure at least the
activities that are listed in the individual I & CS Sub-Operating Sets.
All interlocks, protections, technological links, start-up and shut-down sequences (including stand-in and
stand-by sequences, controls and links to the other automated control systems) must be ensured in the PLC
control system. This means that the control system SW shall verify the implementation of all steps and links.
Only then, the control system shall issue a command for the start-up or shut-down of the relevant drive or any
other actuator through the cut-out relay.
Apart from the basic operations (i.e., valve opening and closing) and other general processes and sequences,
the ACS must also ensure at least the following automatic controls:
 automatic start-up of the K14 (K12, K13) Boiler desulfurization unit;
 automatic operation of the K14 (K12, K13) Boiler desulfurization unit;
 automatic shut-down of the K14 (K12, K13) Boiler desulfurization unit;
 signaling of failures and emergency limits.
The minimum scope of activities shall be as follows:
 delivery, assembly and commissioning of new control system components;
 delivery, assembly and commissioning of new redundant I/O modules, including I/O cards,
communication cards and supply units, etc.;
 delivery of system and application software, including licenses;
 ensuring mutual data distribution with the existing K14 (K12, K13) control systems;
 delivery, laying and connections of system and power supply cabling;
 delivery and installation of cable lines (cable ducts, trays and brackets).
3.3.2.1.11.1 DPS 10.13.01
Visualization of New Technology Equipment
The new desulfurization process equipment shall be controlled from a relevant Operator Station in the ETB
Control Room. The existing Operator Stations of the K14 (K12, K13) Boiler control systems shall be used for
visualization to the maximum extent possible. The visualization SW shall be supplemented with a section
dealing with the K14 (K12, K13) desulfurization technology.
The minimum scope of activities shall be as follows:
 delivery, assembly and commissioning of new Operator Station elements;
 delivery and installation of the visualization SW for displaying the new technology.
3.3.2.1.11.2 DPS 10.13.02
Power Supply for Control System, IN/OUT Modules
Power supply for the control system shall be backed up with an option to select from between 2 (two) 230V AC
supply lines. The supply line shall be selected by means of a switch.
The main power supply lines for the individual desulfurization unit control system cabinets shall run from the
new Switchgear HR-04-44 or HR-04-42 or HR-04-43 respectively.
The main power line for the control system cabinets for the common equipment of the desulfurization units (for
Boilers K14, K13 and K12) shall run from the new Switchgear RM-85 in the area of the desulfurization unit
building that relates to Boiler K14.
Back-up supply lines shall run from Switchgear RM-ŘS1 (situated in the substation under the Electrical Control
Room), which shall be modified and upgraded, including laying of new cables running to new cabinets of the
control system.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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TOTAL PAGES:
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Downstream of the 230V AC power supply switch, both the power supply lines shall be backed up (for the third
power supply option) by means of a suitably designed and located UPS unit or gel battery, whose capacity
shall be sufficient for the control system to record technology process data for a period of no less than 30
minutes in the case of a 230V AC power supply outage.
The minimum scope of activities shall be as follows:
 delivery and assembly of equipment supplying power for the new control system parts;
 delivery and installation of cabling, including cable lines (ducts, trays and brackets);
 modification and upgrading of the existing Switchgear RM-ŘS1;
 commissioning of a new UPS unit for the control system.
3.3.2.1.11.3 DPS 10.13.03
Communication and Data Archiving
Selected data of the K14 (K12, K13) Boiler desulfurization units shall be saved in the archiving server.
Archiving such data must meet the following data:
 periodic saving – a data saving period of no longer than 1s;
 an archiving period of no less than 3 months;
 event and alarm recording – all recorded events and alarms;
 an alarm archiving period of 2 years.
The archiving server shall be equipped with retrospective visualization tools and tools allowing data to be
analyzed by means of spreadsheets and graphs with an option to select a data configuration as a function of
time, code and frequency.
The work shall also ensure the transmission of selected technological data to the ETB Monitoring System.
3.3.2.1.12 PS 10.14 Camera System
Within the work performance, a camera system shall be installed to monitor the following areas:
A.
B.
C.
D.
Main Sorbent Storage Silo
Ca(OH)2 Day Silo (s)
Desulfurization Product Storage Silo
Desulfurization Unit Building Indoor Areas
The above-mentioned areas shall be monitored by the camera system transmitting its data to the K14, K13,
K12 Boiler Operator Stations in the ETB Control Room. The work shall also include an upgrading of the
existing camera system of the ETB II Boiler House. The camera system shall be extended by a 16-channel
recording device, including BNC/VGA converters, keyboard and 21“LCD monitor (light gray).
The Bidder shall propose an exact number of cameras necessary for a well-arranged monitoring of the
specified areas. The Bidder shall explain, describe and include its engineering design in the work price. Each
camera shall be equipped with lens having a variable focal length. Camera images shall be transmitted
through cabling to the K14, K13 and K12 Boiler Operator Station in the ETB Control Room, where they shall
be displayed on a new monitor. To ensure the ability to recognize an image detail even in the dark, additional
headlights shall be used to improve the lighting.
A. Main Sorbent Storage Silo – Sub-Operating Set DPS 10.09.01
B. Ca(OH)2 Day Silo (s) – Sub-Operating Set DPS 10.09.03
C. Desulfurization Product Silo – Sub-Operating Set DPS 10.10.02
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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The camera system shall be designed by the Bidder so as to monitor (i) all important handling operations
during the sorbent unloading, sorbent and desulfurization product storage and (ii) adjacent areas. We expect
each of the above-mentioned silos to be monitored by 2 (two) cameras powered by the I & CS switchgear.
D. Desulfurization Unit Building Indoor Area – SO 10.102
The indoor area of the desulfurization unit building shall be monitored by a camera system whose data shall be
transmitted to the K14, K13, K12 Boiler Operator Station in the ETB Control Room. The work shall also include
the delivery and assembly of a CCTV camera system, (including a recording device, monitor, archiving and
data reproduction systems). The camera system shall be designed by the Bidder so as to monitor any
important handling operation in the respective areas of:
 Compressor Station – Sub-Operating Set DPS 10.06.01;
 Low-Pressure Air Station – Operating Set PS 10.07;
 Areas of sorbent, recycled dust and unused sorbent treatment plants (slaking boxes, mixing
equipment) within Building Object SO 10.102;
 Fabric filter areas within Building Object SO 10.102.
E. Indoor Areas of Desulfurization Product Storage Silo Building – SO 10.106
The indoor area of the mixing center building shall be monitored by a camera system whose data shall be
transmitted to the K14, K13, K12 Boiler Operator Station in the ETB Control Room. The work shall also include
the delivery and assembly of a CCTV camera system, (including a recording device, monitor, archiving and
data reproduction systems).
The expected minimum scope of delivery and assembly shall be as follows:
 delivery and installation of XX (pieces) cameras, (the number is to be specified by the Bidder);
 delivery and installation of the recording device and converters;
 delivery and installation of one 21“ monitor (light gray);
 delivery and installation of XX (pieces) halogen headlights to provide additional lighting, (the
number is to be specified by the Bidder)
 delivery and assembly of relevant equipment and cabling to supplement the existing camera
system;
 delivery and assembly of relevant materials and performance of relevant activities to ensure that
the camera images are displayed on the monitor in the K14, K13, K12 Boiler Operator Station in
the ETB Control Room.
3.3.2.2
Description of Building Objects
Substructures, both horizontal and vertical aboveground structures and other civil engineering elements shall
be designed in view of (i) the character and requirements of the located process equipment, (ii) its static and
dynamic effects, and (iii) hygiene and health requirements arising from the Czech laws, regulations and Czech
National Standards (ČSN). In its bid, the Bidder shall provide a description of the proposed engineering
design, including static and dynamic effects for which the structures are designed.
As per the civil engineering structure type, the Building Objects (SO) and Sub-Building Objects (DSO) are
structured into individual sections. Requirements for civil engineering, functional and layout design and scope
of civil engineering structures of such parts are specified within the general requirements for the designs of
Building Objects and Sub-Building Objects specified in Chapter 7.3 (Common General Requirements for
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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PAGE No.:
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Operating Sets and Building Objects) and Chapter 7.4 (Standardization and Typification). The specific
requirements for the designs of such sections are then specified below within the descriptions of Building
Objects and Sub-Building Objects.
To an extent adequate to the proposed civil engineering design, the requirements for such sections shall be
accepted by the Bidder and shall be included in the work scope. In its bid, the Bidder shall specify the sections
included in the Bidder’s civil engineering design. Such sections shall be possibly supplemented by the Bidder
based on its proposed civil engineering design. In its bid, the Bidder shall specify its complete civil engineering
design, delivery boundaries, delivery and assembly scope.
3.3.2.2.1 SO 10.101 Demolitions
This Building Object shall comprise any potential demolition of the existing buildings, substructures or process
equipment, as required by the desulfurization unit layout design, including demolitions of buildings that shall
not be used by the Bidder’s design after the existing process equipment is relocated. If required by the process
equipment designed by the Bidder and its layout, the following buildings shall be demolished within the
desulfurization unit construction:
 Garage and store building in the area in front of Coal Yard 2;
 a specified section of Coal Yard 2.
The demolition scope and boundaries shall be exactly specified by the Bidder in its bid. If the Bidder requires
that other buildings and equipment are demolished, the Bidder shall consult the Employer about such a
requirement. If the Employer gives its consent thereto, the Bidder shall describe the scope and boundaries of
such demolitions in its bid and shall also include them in the work price.
3.3.2.2.2 SO 10.102 Desulfurization Building
Within the work subject, we require that a new building is constructed for each boiler desulfurization unit. Each
building shall be situated in a specified area behind the respective boilers and bypass road along the railway
siding. As mentioned above, the design shall allow all the K14, K13 and K12 desulfurization unit buildings and
process equipment to be located in the specified area. This design – for all the three desulfurization units –
shall be plotted by the Bidder with a scale of 1:500 or a more detailed scale (1:200) in a lay-out drawing
included in the submitted bid. The building dimensions shall correspond to the process equipment situated in
the building and its operation and maintenance requirements. In this respect, the requirements set out in the
Czech National Standards (ČSN) and legislation shall be complied with. We expect that each boiler
desulfurization unit building shall house the following Operating Sets and process equipment:







Desulfurization Unit for Boiler K14 (K13, K12) – Operating Set PS 10.02
Fabric Filter - Operating Set PS 10.03
High-Pressure Air Station – Operating Set PS 10.06
Low-Pressure Air Station – Operating Set PS 10.07
Transformer Substation
Electrical Substations
Substation Control System
We expect that the desulfurization unit building shall have a supporting steel structure and shall be provided
with cladding. The Building Object (SO) shall also include all substructures for the process equipment within
the desulfurization unit delivery inside the desulfurization unit building.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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TOTAL PAGES:
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Each desulfurization unit building shall include a shower and eyewash to be used in the event that the operator
is stained with sorbent. Since the shower and eyewash shall be supplied with drinking water, they shall be
located in the thermally insulated area of the desulfurization unit building.
In its lower section, on the floor of ±0.000 m, the desulfurization unit building shall house the High-Pressure Air
Station and Low-Pressure Air Station. The building shall also include a substation with Transformer T635,
switchgears for heavy-current equipment, HR-04-44, RM-85, RO-14-6 distribution systems and control system
switchgear area. The process equipment foundations located on the floor of +0.000 m shall be built so that the
process equipment shall be above the flooding water level (approx. 80 cm).
The work subject shall also include the construction of a grounding network (as per the installed power
amounts against foreign voltage spread) and lightning protection system. Connection to the existing grounding
network shall be implemented on the steel structures of the Boiler House and electrostatic precipitators. A new
lighting system shall be built for all the areas of the new process equipment, including an outdoor lighting
system. To define an overall wiring method and requirements for new installations of the lighting and socket
circuits, a Design Documentation shall be subsequently developed within the project in accordance with ČSN
EN 12464-1 and related standards, (such documentation shall not be part of the bid). After all the process
equipment and lighting fixtures are installed, the selected Bidder shall carry out, within the work performance,
a final measurement as required by ČSN EN 12464-1 and related standards with respect to the lighting
intensity of the relevant spaces. The emergency lighting shall be designed within the bid through the
installation of a relevant number of lighting fixtures with the ability to switch to the “emergency lighting” mode in
the case of power outage. Such lighting fixtures shall be powered by a new lighting switchboard.
Other requirements for the implementation of the Building Objects:
 The supporting structure of the desulfurization unit building shall be made of steel.
 The perimeter ground beams and concrete bed shall be provided with insulation against soil
moisture.
 The cladding and roof shall be designed with the required thermal insulation properties. The civil
engineering deliveries shall also include an operator door and a thermally insulated gate
designated for the process equipment. The dimensions of all gates and doors shall be designed so
as to be possible to transport largest indivisible equipment to and from the building indoor area. In
the High-Pressure and Low-Pressure Air Stations, there shall be no windows to prevent the inside
noise from spreading outside the building.
 Suitable and sufficient suction holes shall be made on the building to draw air into the building for
producing high-pressure and low-pressure air and ventilating the building. The suction holes shall
be fitted with noise silencers.
 Suitable and sufficient exhaust holes shall be made on the building to lead ventilation air away from
the building.
 The floors on ±0.000 m shall be made of concrete with dust-free finish so as to correspond to the
designed static and dynamic effects.
 The floors above the floor of + 0.000 m shall be designed in view of the character of the installed
process equipment and requirements for equipment operation and maintenance. Real load must
correspond to the designed static and dynamic effects.
 Installation of an internal steel staircase to provide access to higher floors.
 Installation of an external steel ladder with a safety cage providing access to the roof. The ladder
surface shall be hot-galvanized to provide protection against atmospheric influences.
 Rainwater from the roof shall be drained into the existing stormwater sewer.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
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 In the building, there shall be a drinking water pipeline for the emergency shower used by the
operator stained with sorbent. Water shall be drained through a new sewer connection built within
the work to the existing sewer system.
 Electric lighting – lighting intensity for the process equipment, communication and other areas
inside the building shall comply with the sanitary regulations.
 Within the heavy-current distribution system, sockets shall be installed for the purpose of
maintenance and repairs. The grounding system of heavy-current equipment and distribution piping
shall be connected to the ground network of the plant.
 The telephone system (in the areas of substations and sorbent and desulfurization product
unloading areas) and the electric fire alarm system shall be included in the technological delivery.
 No continuously manned operation is considered for the building. Walkthroughs shall be randomly
performed for checking purposes in the building.
 In any place where it is expected to handle installed mechanical equipment for the purpose of
maintenance or replacement, there shall be lifting and transport equipment.
 Substation air conditioning and heating system.
We expect that within the described Building Object, the activities shall be performed and civil engineering
delivery and assembly shall be carried out within the general description of the parts specified in Chapter 7.3
(Common General Requirements for Operating Sets and Building Objects) and Chapter 7.4 (Standardization
and Typification). Specific requirements for the civil engineering structures within the above-mentioned SubBuilding Objects (DSO) that are not mentioned in the said Chapters are specified below:
Part 05
Wiring
The desulfurization unit areas (i.e., areas of the desulfurization unit, fabric filter, High-Pressure Air
Station, Low-Pressure Air Station), as well as operating walkways and platforms shall be lit by a
suitable number of new light fixtures in compliance with ČSN EN 12464-1. The method of their
installation shall facilitate the servicing of such light fixtures. On each planned floor, there shall be
socket boxes (at least two socket boxes on each floor).
The main and emergency lighting systems and socket boxes shall be powered by the new
Switchgear RO-14-6 (see Operating Set PS 10.12 Heavy-Current Equipment and Distribution
Lines). The new lighting control boxes shall be suitably located near access ways to the process
equipment.
The minimum delivery and assembly scope shall be as follows:




Part 07
Center:
Order No.:
delivery and assembly of power and supply cabling, cables lines and connecting elements;
delivery, assembly and commissioning of local lighting control boxes;
delivery, assembly and commissioning of main and emergency lighting fixtures;
delivery, assembly and commissioning of socket boxes.
Heating
The building heating and ventilation air heating systems shall be included in the work. In its bid,
the Bidder shall propose a suitable building heating system, as well as an air heating system for
air supplied from the outdoor area to heat the desulfurization unit building areas, (possibly
including the areas of the High-Pressure Air Station and Low-Pressure Air Station if heating such
areas by means of waste warmed air from the compressors is insufficient, for example, during the
period of a reduced ambient air temperature when air is suctioned from the outdoor area), and
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possibly also a building ventilation system so as to keep the minimum temperature in the building
in order to ensure safe and reliable operations of the installed process equipment. We expect that
the required minimum temperature shall be +5°C. The substation area shall be suitably heated
and air conditioned in view of thermal requirements of the installed equipment.
Within its bid, the Bidder shall describe a heating system proposed by the Bidder and shall
specify the required minimum temperature value for which the Bidder shall secure its designed
equipment. The heating systems shall be designed for hot water. The heating water and return
water pipelines shall be built between the desulfurization unit building and the existing heating
water and return water pipelines so that the connection shall be installed above the K14 fixed
firefighting equipment building at ML142.
Part 08
Air Replacement
This Part deals with the necessary air exchange in the desulfurization unit building areas to
comply with the requirements set out in the applicable sanitary regulations. Air shall be suctioned
from the outdoor area through suitably designed holes fitted with noise silencers and filters for
coarse dust suctioned from the outdoor area. Through the designed system, it is necessary to
ensure that air is exchanged in the building areas depending on the character of the installed
process equipment and in compliance with the requirements of the Czech National Standards and
legislation. Polluted air shall be led away from the building to the outdoor area through suitably
designed holes fitted with noise silencers.
The air exchange design, including capacity and air exchange intensity data, shall be specified by
the Bidder in its bid. The heating water and return water pipelines shall be built between the
desulfurization unit building and the existing heating water and return water piping so that the
connection shall be installed above the K14 fixed firefighting equipment building at ML142.
Part 10
Lifting and Transport Equipment
Under the ceiling of the areas with the high-pressure air production units (Operating Set PS
10.06), low-pressure air production units (Operating Set PS 10.07), transformer substation and
distribution substations, as well as in other sections of the building above any large equipment,
there shall be grooves designated for a pulley block to be used as lifting equipment during
repairs, maintenance and replacement of the process equipment. The bid shall also include the
delivery of such pulley blocks with relevant load-carrying capacity.
3.3.2.2.3 SO 10.103 Civil Engineering Structures of Outdoor Process Lines and Equipment
This Building Object shall comprise all outdoor civil engineering structures designated for outdoor process
lines and equipment situated as per the layout outside the Building Objects, such as:








Center:
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flue gas ducts
sorbent conveying lines
desulfurization product conveying lines
distribution piping
new booster induced-draft fan
main sorbent storage silo
day sorbent silo
desulfurization product silo
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The above-mentioned civil engineering structures shall be designed with respect to the installed process
equipment, environment, static and dynamic loads. We expect the described Building Object to comprise the
activities, civil engineering deliveries and assembly specified within the general description of the parts in
Chapter 7.3 (Common General Requirements for Operating Sets and Building Objects) and Chapter 7.4
(Standardization and Typification).
Based on the planned process equipment, it is proposed to structure this Building Object into the Sub-Building
Objects specified below.
3.3.2.2.3.1 DSO 10.103.01 Civil Engineering Structures for Booster Induced-Draft Fan
We expect the new booster induced-draft fan to be situated in the outdoor area behind the desulfurization unit.
This Sub-Building Object shall comprise all civil engineering structures for the foundation and embedment of
this fan.
3.3.2.2.3.2 DSO 10.103.02 Foundations for New Flue Gas Ducts
This Sub-Building Object shall comprise all foundation and supporting structures for new or modified old flue
gas ducts.
3.3.2.2.3.3 DSO 10.103.03 Civil Engineering Structures for New Outdoor Distribution Piping
This Sub-Building Object shall comprise all foundation and supporting structures for outdoor distribution piping
to the extent as per the Bidder’s engineering design. The expected scope of the outdoor distribution piping is
specified within Operating Set PS 10.08 (Outdoor Distribution Piping).
3.3.2.2.3.4 DSO 10.103.04 Civil Engineering Structures for Sorbent Management System
This Sub-Building Object shall comprise all civil engineering structures for the process equipment specified in
Operating Set PS 10.09 (Sorbent Management System), including, but not limited to:




main sorbent storage silo
system of sorbent conveyance to the day silo
sorbent day silo (s)
system of sorbent conveyance to the desulfurization unit
The space design of the steel structure and silo in the case of the main sorbent storage silo and possibly also
in the case of the sorbent day silo (if allowed by the layout) must allow unloading from tilting tank trucks to the
extent of full height so that traffic on the adjacent railway siding track or bypass road shall not be affected.
3.3.2.2.3.5 DSO 10.103.05 Civil Engineering Structures for Desulfurization Product Management System
This Sub-Building Object shall comprise all civil engineering structures for the process equipment specified in
Operating Set PS 10.10 (Desulfurization Product Management System), including, but not limited to:
 desulfurization product conveyance system
 desulfurization product storage silo
Center:
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The steel structure and mixing center space designs must allow the stabilizate to be dispatched from the
mixing center, and at the same time, such an operation must not affect dispatching the desulfurization product
from the desulfurization product storage silo or fly ash from the existing fly ash silos or newly built silo. It is not
possible either to affect the railway siding track or adjacent bypass road traffic.
3.3.2.2.4 SO 10.104 Modifications to Existing Stacks
This Building shall particularly include the following deliveries and civil engineering works at the relevant stack
to the minimum extent:
 potential razing of existing masonry and construction of additional perimeter masonry to connect
the new flue gas duct (s) to the relevant stack;
 dismantling of fixing, supporting and reinforcing elements and other equipment;
 delivery and assembly of connecting pieces to connect the flue gas ducts with desulfurized flue
gases from the K14 and K3 Boiler desulfurization unit to the existing flue gas duct or directly to the
relevant Stack 3;
 delivery and assembly of connecting pieces to make a connection from Boiler K12 to the existing
flue gas ducts running to Stack 2;
 steel structures and fitting products – delivery and assembly of new fixing, reinforcing and
supporting elements;
 coating and anti-corrosion surface finishing – within its bid, the Bidder shall propose and explain a
comprehensive anti-corrosion surface finishing system for the stack, which shall comprise all
coating and anti-corrosion surface finishing of both the existing and new steel elements and civil
engineering elements to ensure sufficient anti-corrosive finish protecting the structures against
effects of wet and possibly acidic components of flue gas ducts from all the boilers terminated in
the stack.
Potential condensate arising from flue gases shall be driven from the lower section of the stack to a tank,
where it shall be collected. We assume that a significant condensing of water vapor may occur during the plant
start-up (where such water vapor shall be driven to the cold stack), but not during the stable operation, and as
such, a double-shell plastic tank with an anticipated capacity of approximately 3.5 m3 (diameter: 1.5 m, height:
2 m) shall be used for collecting the condensate. The tank, which shall be located in the lower section of the
stack, shall be designed so as to be possible to handle it by means of a fork-lift truck with skids. In its bid, the
Bidder shall describe the statutory inspection method for all areas in the stack, using suitably designed ladders
or foot irons.
3.3.2.2.5 SO 10.105 Waste Disposal
This Building shall comprise the disposal of all materials and masses occurred as a result of dismantling,
demolitions and building work performance, including removal of such materials. The waste disposal shall be
carried out in compliance with the applicable codes and standards. In particular, this shall include the disposal
of waste from dismantled equipment – piping, cabling and debris. Metal waste and cabling shall continue to be
owned by the Employer, and the Bidder shall sort and load such materials into provided skips (i.e., containers).
Center:
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Description of Engineering Objects
3.3.2.3.1 SO 10.201 Construction Work for Relocations
This Building Object shall include all building modifications, works and constructions associated with the
process equipment or utility relocations arising from the engineering design proposed by the Bidder. Such
construction works shall be described by the Bidder in its bid and shall be included in the price of the work.
3.3.2.3.2 SO 10.202 Pipe and Conveyance Bridges
We expect new pipe bridges to be built in specified areas outside Boiler K14 during the Boiler K14
desulfurization unit construction (and possibly during the construction of K13 and K12 desulfurization units) for
the sorbent and desulfurization product conveying lines and utility lines. These pipe bridges must be designed
and constructed during the first phase (i.e., Phase A – construction of the desulfurization unit for Boiler K14) so
as to be possible to install on the pipe bridges further conveying pipelines and cable trays during the next
phases of the construction.
The pipe and conveyance bridges shall not affect the bypass road or railway siding traffic. They shall not form
any obstacle for the sorbent or desulfurization product handling system. The Employer shall be consulted
about the layout no later than during the design preparation period.
Basic requirements for the implementation of pipe bridges shall be as follows:



Headroom of no less than 4.5 m;
The supporting structure shall be made of steel. An outside steel staircase and walkway shall be
installed;
The grounding system of the steel structure and process equipment on the pipe bridge shall be
connected to the ground network of the plant.
3.3.2.3.3 SO 10.203 Fire Main and Firefighting Equipment
In accordance with the requirements set out in the Czech codes and standards (Czech National Standards ČSN), a fire main shall be built to the extent of the newly built process equipment and Building Objects and
with the dimensions required for ensuring the firefighting ability under the Czech National Standards. The new
Building Objects and process equipment shall also be provided with firefighting equipment and extinguishers,
whose number and quality shall comply with the requirements, set out in the Czech codes and standards.
Within this Operating Set, fire water shall be supplied through a new pipeline connected to the existing
firewater distribution piping. The fire water pipeline shall be ended with hydrants, which shall be included in the
delivery of this distribution piping. The pipeline dimensions and design, number and locations of the hydrants
shall be proposed by the Bidder within its bid, who shall also describe and include such data in the work price
in compliance with the designed process equipment and requirements set out in the applicable Czech codes
and standards.
3.3.2.3.4 SO 10.204 Stormwater Sewerage
Rainwater from new roof structures, paved areas and ways built within this work shall be drained to the
existing stormwater sewerage system. For such purposes, a new rainwater sewer shall be built to a sufficient
extent and with a sufficient capacity within the work. The new rainwater sewer shall be connected to the
existing Sewer F.
Center:
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Moreover within the Building Object, each tank truck area within the sorbent and desulfurization product
unloading site shall be provided with a sedimentation pit provided with an overflow section leading to the
gravity sorption separator of light liquids in compliance with ČSN EN 858-1 or a similar facility designated for
removing light liquids. Cleaned water shall be discharged from the light liquid separator to Sewer F.
Costs of building such new sewer connections shall be included in the bid price. If required by the proposed
bid, the existing stormwater sewerage shall be relocated to the extent necessary and the relevant relocation
shall be included in the price of the work. Both the existing and new stormwater sewerage systems shall be
secured under the roads and paved ways so as not be damaged by the future traffic on the ways or handling
areas.
3.3.2.3.5 SO 10.205 Sanitary Sewerage
Sanitary sewage relating to the process equipment and processes within this work shall include waste water
from emergency showers and similar water types, which shall be discharged to Sewer F. For this purpose, a
new sanitary sewerage system shall be built to a sufficient extent and with a sufficient capacity within the work
performance. The costs of building such new sewer connections shall be included in the bid price.
If required by the design proposed by the Bidder, the existing sewerage system shall be relocated to the extent
necessary, and the relocation costs shall be included in the work price. Both the existing and new sanitary
sewerage systems shall be secured under the roads and paved ways so as not be damaged by the future
traffic on the ways and handling areas.
3.3.2.3.6 SO 10.206 Roads and Paved Ways
Within the construction of K14÷K12 Boiler desulfurization units, new roads and paved ways shall be built and
the existing roads and paved areas shall be extended in and outside the specified area of the desulfurization
unit at the Třebovice Power Plant site to the extent of the engineering design proposed by the Bidder. The
roads and paved ways shall provide access to the installed process equipment to ensure that this equipment
can be operated, maintained and repaired. The scope and design of the roads and paved areas shall be
proposed by the Bidder in its bid. In doing so, the Bidder shall take into account the location of future planned
structures of the K13 and K12 desulfurization units. In the areas of such planned structures, no new paved
areas shall be built during Phase A of the work. The minimum width of the road shall be 3.5 m.
Each Bidder shall propose the structure of such areas with anticipated load amounts which shall correspond to
the purpose of use of such areas. In proposing the structure and loads of the roads and paved ways, the
Bidder shall be based on the needs of additive and desulfurization product logistics considering the fact that
such ways shall also be used for the logistics of the other, adjacent process equipment constructed within
environmental upgrading projects. In making its Bid, the Bidder shall also be based on the requirements set
out in Regulation 342/2002, on approving technical qualifications and technical conditions for vehicle traffic of
highways, and codes and standards applicable to the designing and construction of roads and paved areas. In
its bid, the Bidder shall specify the structure, thickness and data on the maximum load. It is expected that
vehicles with a total weight of up to 48 t will move at the site.
The areas shall be mutually connected and shall be provided with a drainage system. The elevation of new
roads and paved areas shall be proposed so as to comply with (i) the elevation of the newly constructed and
existing buildings and (ii) sloping of the existing roads and paved areas, which shall not be affected by the
construction. If it is necessary to modify some sections of the existing roads and paved areas for this purpose,
then any such work shall be part of this Building Object.
The sloping shall be given by the adjacent elevation conditions and original elevation of the associated existing
paved areas and is expected to mostly amount to 2%. The longitudinal section of the roads shall take into
Center:
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account the existing paved areas, existing and newly designed buildings and adjacent terrain. It shall be
designed with a minimum slope.
The areas and roads shall be lined with an embedded, elevated or barrier-free curb of 15/25 cm or drainage
troughs. The area structure shall be designed for the subsoil deformation modulus of Edef,2 = 45.00 MPa.
In the case of additional concreting of panel surfaces or replacement of non-arrangeable parts, the concrete
cover shall be expanded by means of sawn joints. The maximum size of any non-expanded area shall be 25
m2. The joint depth shall equal one fourth of the concrete cover thickness, and the joint shall be sealed with
asphalt filler. The concrete cover drive-layer finish shall be roughened during the application. The cover shall
be provided with chemical-resistant coat.
The existing roads in the designed area of the site are provided with rigid concrete covers and road concrete
panels. At present, the roads are loaded with trucks with a maximum weight of up to 40 tons. The new roads
and paved areas shall also comply with such load. The roads shall be drained to the existing stormwater
sewerage system or adjacent grass lands. The points of the existing repaired roads and newly built roads
crossing the existing or newly built utilities and channels shall be implemented so that the future operation
shall not damage such utilities or channels or paved areas or the road running along such areas. The paved
areas designated for tank trucks at the sorbent and desulfurization product unloading facility sites shall be
drained by sloping these areas towards the sewer inlets above sedimentation pits (for each tank truck area,
there shall be a separate sedimentation pit). The stormwater drainage design shall be specified in Building
Object SO 10.204 Stormwater Sewerage.
The roads and ways shall be lit by the existing lighting system, which shall be supplemented with a necessary
number of lighting fixtures if need be – the lighting is the subject of SO 10.207 (Outdoor Lighting). The existing
lighting fixtures are mostly installed on the adjacent buildings.
The Building Object (SO) shall also include all civil engineering works associated with modifications to the
existing sewer inlets in the existing roads and paved areas affected by building new roads and paved areas.
The elevation of new roads and paved areas shall be proposed so as to comply with (i) the elevation of the
newly constructed and existing buildings and (ii) sloping of the existing roads and paved areas, which shall not
be affected by the construction. If it is necessary to modify some sections of the existing roads and paved
areas for this purpose, then any such work shall be part of this Building Object.
3.3.2.3.7 SO 10.207 Outdoor Lighting
In compliance with the requirements set out in the Czech codes and standards (Czech National Standards),
the existing outdoor lighting system shall be extended to the extent of the newly constructed process
equipment and Building Objects. The new Building Objects and possibly also the process equipment located in
outdoor areas shall be lit by new outdoor lighting fixtures whose number and intensity shall comply with
requirements set out in the Czech codes and standards (Czech National Standards).
Center:
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Delivery Boundaries and Specification of Work Connection Points
A. Flue Gases:
A.1: Non-Desulfurized Flue Gases
Location
A1
Designation:
Description:
Operating
Pressure:
Operating
Temperature:
to be specified
by the Bidder
as per the
designed
process
equipment
Pa
A.2: Desulfurized Flue Gases
Location
A2
Designation:
Description:
Operating
Overpressure:
Operating
Temperature
to be specified
by the Bidder
as per the
designed
process
equipment
Pa
The boundary of entry of non-desulfurized flue
gases from Boilers K14÷K12 into the newly
delivered desulfurization unit shall be the outlet of
non-desulfurized flue gases from the existing
electrostatic precipitators (downstream of the
induced-draft fan) – a duct with a diameter of
3,150 mm, s=6 mm.
110÷130°C Installation
Pipeline
Dimensions:
diameter:
3,150 mm
The boundary of outlet of desulfurized flue gases
from the desulfurization unit shall be the common
entry of desulfurized flue gases into Stack 3 or 2
respectively.
to be specified
Installation
to be specified
by the Bidder as Dimensions:
by the Bidder
per the designed
as per the
process
designed
equipment
process
°C
equipment
B. Sorbent and Desulfurization Product:
B.1: Sorbent
Location
Designation:
Operating
Overpressure:
Center:
Order No.:
B1 Description:
to be specified Operating
by the Bidder Temperature:
as per the
designed
process
equipment
MPa
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The boundary of sorbent entry into the sorbent silo
shall be the connection designated for sorbent
unloading from tank trucks.
to be specified Installation
to be specified
by the Bidder as Dimensions:
by the Bidder
per the designed
as per the
process
designed
equipment
process
equipment
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B.2: Desulfurization Product
Location
Designation:
B2 Description:
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The boundary of desulfurization product outlet
from the final desulfurization product silo shall be
1. the connection (loading nozzle)
designated for loading the desulfurization
product into tank trucks at the new
desulfurization product storage silo;
2. the connection point for the mutual
substitutability of the new silo and the
existing adjacent fly ash silo on the fly ash
silo roof.
Operating
Overpressure:
to be specified Operating
by the Bidder Temperature:
MPa
to be specified Installation
by the Bidder Dimensions:
°C
to be specified
by the Bidder
as per the
designed
process
equipment
C. Water:
C.1: Process Water
Location
Designation:
Operating
Overpressure:
C1 Description:
0.3 MPa Operating
Temperature:
C.2: Drinking Water
Location
Designation:
Operating
Overpressure:
C2 Description:
0.6 MPa Operating
Temperature:
C.3: Fire Water
Location
Designation:
Operating
Overpressure:
Center:
Order No.:
C3 Description:
0.9 – 1.1 MPa Operating
Temperature:
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The boundary of process water connection to the
desulfurization unit shall be Distributor 15 at the
southern gable wall in the Machine Hall building.
10÷30 °C Installation
DN 200
Dimensions:
The boundary of drinking water connection to the
desulfurization unit shall be the distribution
pipeline at Boiler House Box 01Ú at the elevation
of 7.5 m in the Boiler House.
10÷20 °C Installation
DN 32 mat.
Dimensions:
PPR
The boundary of fire water connection to the
desulfurization unit shall be the distribution
pipeline above the K14 fixed firefighting equipment
building at ML142.
approx. 20 °C Installation
DN 100
Dimensions:
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C.4: Stormwater
Location
Designation:
Operating
Overpressure:
C4 Description:
pressureless Operating
Temperature:
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The boundary of connection of the stormwater
sewer to the existing Sewer F shall be Inspection
Pit Š3 near the light fuel oil storeroom.
10÷30 °C °C Installation
Pre-fabricated
Dimensions: concrete sewer
pipeline with an
egg-shaped
cross section of
1,200 x 800 mm
C.5: Sanitary Sewage
Location
Designation:
Operating
Overpressure:
C5 Description:
pressureless Operating
Temperature:
C.6: Heating Water
Location
Designation:
Operating
Overpressure:
C6 Description:
0.18 – 0.47 Operating
MPa Temperature:
C.7: Return Water
Location
Designation:
Operating
Overpressure:
C7 Description:
to be specified Operating
by the Bidder Temperature:
MPa
The boundary of connection of the sanitary sewer
to the existing Channel F shall be Inspection Pit
Š3 near the light fuel oil storeroom.
10÷30 °C °C Installation
Pre-fabricated
Dimensions: concrete sewer
pipeline with an
egg-shaped
cross section of
1,200 x 800 mm
The boundary of connection of heating water to
the desulfurization unit shall be at the distribution
pipeline above the K14 fixed firefighting equipment
building at ML142
75 – 100 °C Installation
DN 80
Dimensions:
The boundary of connection of return water from
the desulfurization unit shall be at the distribution
pipeline above the K14 fixed firefighting equipment
building at ML142
to be specified Installation
DN 80
by the Bidder Dimensions:
°C
D. Air:
D.1: Compressed Air
Location
Designation:
Center:
Order No.:
D1 Description:
ŘS- 4300
ETB11C
File:
Archive Number:
The boundary of connection of compressed air
from the desulfurization unit to the existing
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
Operating
Overpressure:
PAGE No.:
75
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Třebovice Power Plant compressed air distribution
pipeline above the K14 fixed firefighting equipment
building at ML142
to be specified Installation
DN 100
by the Bidder Dimensions:
°C
To be specified Operating
by the Bidder Temperature:
MPa
D. Heavy-Current Equipment and Distribution Lines:
The boundary for the Electrical Part connection shall be:
 R6-14, Bay 10
 R6-14, Bay 9
 HR-04-24, Bay 2, 6
 RO-14
 RO-14
power supply for the booster induced-draft fan
power supply for T635
power supply for RM-85
power supply for AC Lighting Switchgear RO-14-6
power supply for DC Lighting Switchgear RO-14-6
E. Instrumentation and Control System (I & CS):
The boundary for the I & CS and ACS connection shall be:
 K14(K12,K13) control system room
field bus communication connection
 Switchgear RM-ŘS1
back-up power supply line for I/O module boxes
4.
INPUTS FOR EQUIPMENT DESIGN AND REQUIRED WORK
PARAMETERS
4.1.
Inputs for Equipment Design
4.1.1.
Fuel Basis
Boilers K12÷K14 burn black coal dust from the Ostrava-Karviná coal district (OKD). After the existing boilers,
each provided with a wet-bottom furnace, are reconstructed into dry-bottom boilers, it will also be possible to
continue burning black coal dust, and moreover, coal middlings or their mixtures. It is also considered to burn
coal from Poland in the future to replace the coal middlings.
This fuel basis is also planned for the near future. Therefore, the equipment must be designed so as to ensure
the output SO2 concentration in desulfurized flue gases and safe and reliable operation along with this fuel
basis, while meeting the other requirements set out herein.
Black Coal Dust
Rough Analysis:
Fuel Heating Value
Water Content in Raw Fuel
Ash Content in Raw Fuel
Sulfur Content in Raw Fuel
Specific Sulfur Content
Volatile Combustible Content
Chlorine Content
Fluorine Content
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
Qir = 22.5 ÷ 26.0 MJ/kg
Wr = 6 ÷ 15 %
Ar = 13 ÷ 20 %
Sr = max.1.00%
Srm = max. 0.44 g/MJ
Vdaf = 26 ÷ 33 %
Clr = 0.05÷0.06 %
Fr = 0.01÷0.025 %
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
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Expected Combustible Matter Content: (for Qir of approx. 25.2 MJ/kg):
Hydrogen H2
5.25%
Carbon C
88.50%
Nitrogen N2
1.40%
Oxygen O2
4.30%
Sulfur S
0.55%
Coal Middlings
Rough Analysis:
Fuel Heating Value
Water Content in Raw Fuel
Ash Content in Raw Fuel
Sulfur Content in Raw Fuel
Specific Sulfur Content
Volatile Combustible Content
Chlorine Content *
Fluorine Content *
Qr = 17.5 ÷ 22.5 MJ/kg
Wr = 6 ÷ 15 %
Ar = 25 ÷ 36 %
Sr = max.1.00 %
Srm = max. 0.57 g/MJ
Vdaf = 28 ÷ 35 %
Clr = 0.04÷0.07 %
Fr = 0.01÷0.04 %
Expected Combustible Matter Content: (for Qir of approx. 18.5 MJ/kg):
Hydrogen H2
5.20%
Carbon C
85.70%
Nitrogen N2
0.98%
Oxygen O2
6.27%
Sulfur S
1.85%
Polish Fuel
Rough Analysis:
Fuel Heating Value
Water Content in Raw Fuel
Ash Content in Raw Fuel
Sulfur Content in Raw Fuel
Specific Sulfur Content
Volatile Combustible Content
Chlorine Content
Fluorine Content
Qir = 22.5 ÷ 26.5 MJ/kg
Wr = 6.0 ÷ 15.0 %
Ar = 13.0 ÷ 20 %
Sr = max. 1.0 %
Srm = max. 0.45 g/MJ
Vdaf = 30,0÷38.0
Clr = 0.17÷0.37 %
Fr = 0.003÷0.010 %
Expected Combustible Matter Content: (for Qir of approx. 24.6 MJ/kg):
Hydrogen H2
5.08%
Carbon C
82.60 %
Nitrogen N2
1.28 %
Oxygen O2
9.72 %
Sulfur S
1.32 %
Stabilization Fuel – Quality Features
To start up the boilers and stabilize the combustion at low loads, the following stabilization fuel shall be
used in the stabilization burners:
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
Stabilization fuel type
Heating Value
PAGE No.:
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118
light fuel oil
42.3 MJ/kg
Meaning of the fuel parameter indexes:
r – raw sample
d – water-free (dry) sample
4.1.2.
Equipment Sizing – Specified Parameters and Requirements
This Chapter includes a summary of specified parameters for the basic equipment and required design
capacity and other data for sizing the individual equipment units. Dimensions of the equipment (storage silos,
conveyance lines, etc.) shall be designed for the fuel with the highest expected sulfur content in the raw
sample, i.e., for Sr=1%.
4.1.2.1
Desulfurization Unit, Fabric Filter, Booster Induced-Draft Fan
The desulfurization unit and the fabric filter shall be designed for the following parameters:
Basic Data:
Type of burned fuel
middlings under Section 4.1.1.
black coal dust under Section 4.1.1.
Polish coal under Section 4.1.1.
Minimum flue gas flow 4) under NC1) downstream of EP
120,000 Nm3/h
Rated flue gas flow 5) under NC1) downstream of EP
270,000 Nm3/h
6)
1)
Maximum flue gas flow under NC downstream of EP
300,000 Nm3/h
SO2 concentration in non-desulfurized flue gases under RC2)
750÷3,000 mg/Rm3
2)
Maximum SO2 concentration in desulfurized flue gases under RC
190 mg/Rm3
Continuously achievable efficiency of desulfurization
93.7%
Solid particle (dust) concentration downstream of EP
20 ÷ 60mg/Rm3
Maximum solid particle (dust) concentration in flue gases
downstream of desulfurization unit under RC2)
18 mg/Rm3
Flue gas temperature downstream of electrostatic precipitators (EP)
110 -130°C
Other Data3):
Ammonia slip:
Notes
1)
2)
3)
4)
Center:
Order No.:
5-20 mg/Rm3
NC = situation under so-called Normal Conditions, i.e., absolute pressure of 101,325 Pa,
temperature of 0°C, actual O2 content in flue gases, wet flue gases. With respect to these
conditions, the Bidder shall also specify the O2 content in % in flue gases upstream of the
desulfurization unit at which the flue gas flow is stated.
RC = situation under so-called Reference Conditions, i.e., absolute pressure of 101,325 Pa,
temperature of 0°C, 6% O2 content in flue gases, dry flue gases.
These data apply to the combustion of coal middlings and coal middlings / black coal dust
mixture. Such data are not available for Polish coal.
The minimum flue gas flow shall be the smallest flue gas flow to the desulfurization unit
determined with redundancy for a flue gas flow lower than expected with a 50% load of the
boiler and related equipment after reconstruction.
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
5)
5)
4.1.2.2
PAGE No.:
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The rated flue gas flow means an expected flue gas flow to the desulfurization unit at the
boiler rated output of 161 MWt and black coal dust or coal middlings combustion and at
expected characteristics of the boiler and associated equipment after reconstruction at an
O2 content in flue gases downstream of the electrostatic precipitators of 7.3 %.
The maximum flue gas flow means the highest expected flue gas flow to the desulfurization
unit at the boiler rated output of 161 MWt determined with redundancy for a potential
deterioration of the fuel properties, boiler characteristics and associated equipment. The
unit shall be designed for this flow.
Sorbent
It is expected that the following sorbent shall be the input to the desulfurization process. These data
shall be possibly further adjusted within the designed and delivered process equipment.
Basic Technical Parameters of CaO under ČSN EN 459-1:
Non-Hydraulic Lime Type
Designation
Chemical Composition:
CaO+MgO
MgO
CO2
SO2
Free Lime
Reactivity t60
Grain Size (expressed as the screen throughput):
2 mm screen
0.2 mm screen
0.09 mm screen
4.1.2.3
White Lime 90
CL 90
≥ 90 %
≤5%
≤4%
≤2%
≥ 80 %
< 10 min
100 %
≥ 95 %
≥ 85 %
Compressed Air for Desulfurization Technology
Compressed air for the desulfurization unit and desulfurization product conveyance to the silo shall be
produced in the Compressor Station (Sub-Operating Set DPS 10.06.01). The compressed air
production and parameters shall meet the needs of the designed process equipment under all
operating conditions. We expect that it shall be necessary to provide two compressed air types, more
specifically:
Process Compressed Air:
 Compressed air dried to the dew point temperature of +3 °C
 Air overpressure at the Compressor Station outlet (at the distributor: + 3 °C) of no less than
0.7 MPa(overpressure)
Instrument Compressed Air:
 Compressed air dried to the dew point temperature of - 40 °C
 Air overpressure at the Compressor Station outlet (at the distributor: - 40 °C) of no less than
0.7 MPa(overpressure)
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
4.1.2.4
PAGE No.:
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Main Sorbent Storage Silo
The main sorbent (CaO) storage silo shall be designed for the following parameters:
Sorbent storage period:
5 days for the rated output of
all the three desulfurization
units
max. 10 mg/m3
Dust emissions from the silo filter:
4.1.2.5
Ca(OH)2 Day Silo
The day silo shall be designed for the following parameters:
Sorbent storage period:
2 days for the desulfurization
unit rated output
max. 10 mg/m3
Dust emissions from the silo filter:
4.1.2.6
Final Desulfurization Product Silo
The final desulfurization product shall be designed for the following parameters:
Silo capacity:
750 m3, no less than 5 days
for the rated output of all the
three desulfurization units
max. 10 mg/m3
Dust emissions from the filter:
In its bid, the Bidder shall specify the silo storage capacity, i.e., number of operating days for which the
silo storage is sufficient at the rated output of the equipment.
4.1.2.7
Process Water for Desulfurization
Filtered water shall be used as process water in the desulfurization unit.
Average Chemical Values of Filtered Water in 2011
Parameter
Unit
Undissolved Substances
Dissolved Inorganic Salts
Conductivity
pH at 25ºC
p – alkalinity
m – alkalinity
Chemical Oxygen Demand
CODCr
Total Hardness
Total Fe
mmol /l
mmol /l
mg /l
Filtered
Water
4.6
≈ 320
968.0
8.5
0.2
2.9
22.8
mmol /l
mg /l
3.1
0.2
mg /l
mg /l
mS /cm
Notes: Dissolved Inorganic Salts = annealed dissolved substances
CODCr =chemical oxygen demand determined by means of the dichromate method
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
5.
PAGE No.:
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REQUIREMENTS FOR CONTENT AND FORM OF TECHNICAL PART
OF THE BID
The bid shall include:
1. Description of the engineering design structured as specified herein. The Bidder shall provide the
description with the required structure into Operating Sets and Building Objects for Phase I. For the
other phases, the Bidder shall only provide its description in the event that it differs from Phase I as to
quality or quantity.
2. For the purpose of determining the specific consumption of operating materials and energy
commodities, the desulfurization unit (PS 10.02) and the fabric filter (PS 10.03) for the desulfurization
of flue gases of one boiler shall be considered as one technological unit.
3. All required data on the consumption of operating materials and fillings shall be specified in the bid for
the sulfur content of Sr=0.60% in raw sample.
4. List of connection data along with the following data: DN, PN, operating medium, operating
temperature, specification of the relevant Operating Set.
5. Boundaries between and among the individual Operating Sets (PS), Sub-Operating Sets (DPS),
Building Objects (SO), Sub-Building Objects (DSO), with the structure and to the extent corresponding
to the specific work price.
6. Parameters of the individual designed process equipment units to the minimum extent for the
individual Operating Sets and Building Objects. The individual parameters shall be specified under the
following operating conditions:





minimum flue gas flow
rated flue gas flow
maximum flue gas flow
NC = Normal Conditions
RC = Reference Conditions
These terms are defined in Chapter 4.1.2.1. (Desulfurization Unit, Fabric Filter, Booster Induced-Draft
Fan).
This means the following:
 mg/Rm3 – concentration specified in mg per 1 m3 under RC
 Nm3 – volume of 1m3 determined under NC
 minimum output of the equipment – desulfurization unit capacity at the minimum flue gas
flow
 rated output of the equipment – desulfurization unit capacity at the rated flue gas flow
corresponding to the boiler rated output of 161 MWt, black coal dust or coal middlings
combustion and expected features of the boilers and associated equipment after
reconstruction
 maximum output of the equipment – desulfurization unit capacity at the maximum flue gas
flow
 NAC = Normal Air Conditions, i.e., at an absolute pressure of 101,325 Pa, temperature of
20°C and relative air humidity of 0 %. If compressed air production or conveyance
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
81
TOTAL PAGES:
118
equipment is in question, then such conditions shall be related to the intake section of the
equipment. The relevant absolute pressure in the discharge section of the compressed air
production or conveyance equipment pressure drop of the equipment p at which the
efficiency or any other parameter is determined shall be specified by the Bidder in its bid as
per the proposed engineering design (in MPa abs.)
 Em3 – 1m3 determined under actual (effective) conditions, i.e., at actual (absolute) pressure
and temperature. If the Bidder provides air mass data under such conditions, the Bidder
shall always also specify the temperature and pressure at which such data were
determined.
PS 10.0. Relocations
In its bid, the Bidder shall specify by the individual pipe branches and cable lines:









Basic technical and functional description, layout;
Material specifications for the individual pipe sections;
Dimensions and length of the individual pipe sections – DN;
Pressure levels of the individual pipe sections - PN (bar);
Shut-off, control and safety elements – basic dimensions and characteristics;
Pipeline thickness (mm);
Paint system– structure and number of paints;
Insulation – thermal insulation materials, insulation coverage materials, insulation and
insulation coverage thickness (mm);
List of measured values and control circuits.
PS 10.02 Desulfurization Unit











Center:
Order No.:
Basic technical and functional description of the desulfurization unit;
Description of the operation method;
Description of the operation method during boiler start-up, (i.e., boiler operation with the
light-fuel oil burners);
SO2 input concentration for which the desulfurization unit was designed (mg/Rm3);
Guaranteed SO2 output concentration value downstream of the desulfurization unit
(mg/Rm3);
Minimum flue gas flow at the desulfurization unit inlet for which the desulfurization unit was
designed (Nm3/h) under NC;
Rated flue gas flow at the desulfurization unit inlet for which the desulfurization unit was
designed (Nm3/h) under NC;
Maximum flue gas flow at the desulfurization unit inlet for which the desulfurization unit was
designed (Nm3/h) under NC;
Dust input concentration for which desulfurization unit was designed (mg/Rm3);
Used sorbent type in the state corresponding to the sorbent entering the main sorbent
storage silo (CaO) and requirements for its quality;
Consumption of the sorbent in the state corresponding to the sorbent entering the main
sorbent storage silo.
The consumption shall be specified for the rated capacity of the plant (kg of sorbent per
hour) and as a function of the plant capacity, i.e., kg of sorbent per hour = function of {plant
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report










PAGE No.:
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TOTAL PAGES:
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capacity (Nm3 of flue gases per hour)} in the plant capacity range from the minimum to the
maximum capacity of the unit;
Specific consumption of CaO related to a unit of removed SO2 (kg of CaO per kg of
removed SO2). The consumption shall be specified for the rated output of the
desulfurization unit (kg of sorbent per kg of removed SO2) and as the dependence of the
specific CaO consumption on the plant capacity, i.e., kg of CaO per kg of removed SO2 =
function of {plant capacity (Nm3 of flue gases per hour)} in the plant capacity range from
the minimum to the maximum capacity of the plant;
Maximum current compressed air demand of the boiler desulfurization unit (Nm3/h under
the Normal Air Conditions). In the bid, this demand shall be divided as per (i) individual
demand types of the desulfurization unit, and (ii) pressure levels, and (iii) air quality;
Final desulfurization product output (i.e., kg of final desulfurization product per hour). The
output shall be specified for the desulfurization unit rated capacity (kg of final product per
hour) and as the dependence of final desulfurization product output on the plant capacity
(i.e., kg of final desulfurization product per hour = function of {plant capacity (Nm3 of flue
gases per hour)} in the plant capacity range from the minimum to the maximum capacity of
the plant;
Mass percent composition of the final desulfurization product. Its characteristics, basic
properties, processability and potential application examples.
Other waste substances produced in and removed from the desulfurization unit, structured
by individual types and specified in kg of waste product per kg of removed SO2;
Plotting of measuring and signaling equipment;
List of measured values and control circuits;
List and description of blocking (i.e., tripping) conditions, (protections);
Description of the desulfurization unit start-up method and start-up period from the hot and
cold conditions;
Minimum flue gas flow from which flue gases shall be recirculated from a location
downstream of the desulfurization unit to the desulfurization unit inlet.
PS 10.03 Fabric Filter




Center:
Order No.:
Basic technical and functional description;
Description of the fabric filter technology design and operation during the boiler start-up
with light fuel oil stabilization burners;
Technical specification of the filter:
 Type;
 Dimensions;
 Casing design;
 Number of chambers, chamber rows, chamber bags;
 Total filter area, bag length and diameter;
 Active filter area corresponding to the rated flue gas flow rate;
 Filtration velocity corresponding to the rated flue gas flow rate;
Basic characteristics of the filter;
 Minimum, rated and maximum flue gas flow rate;
 Flue gas temperature and pressure;
 Pressure drop;
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report








PAGE No.:
83
TOTAL PAGES:
118
 Specific filtered load, (minimum, rated, maximum) filtration velocity;
Basic characteristics of the filter elements;
 Filter material type;
 Bonded fabric/ground fabric;
 Surface density;
 Permeability;
 Thickness;
 Density;
 Longitudinal strength;
 Transverse strength;
 Maximum shrinkability (% at operating temperature);
 Surface finish, impregnation;
 Operating temperature resistance;
 Maximum temperature resistance;
 Manufacturer;
Filter equipment;
 Lifting equipment;
Anticipated bag replacement cycle;
The bid shall specify the filter element inspection and replacement methods;
Other parameters, required equipment, protections (e.g., protection activated after the
maximum allowable flue gas temperature upstream of the filter is reached);
Plotting of measuring and signaling equipment;
List of measured values and control circuits;
List and description of blocking (i.e., tripping) conditions, (protections).
PS 10.04 Booster Induced-Draft Fan






Center:
Order No.:
Fan type and manufacturer;
Basic technical and functional description;
Fan characteristics with the working area specification and plotting of the nominal duty
point;
Input power and efficiency characteristics;
If speed control is applied, then we require that the characteristics of the whole unit are
provided along with the specification of the working area, input power and efficiency data.
Parameters of the new fan;
 Delivery flow rate Vj (Nm3/h, Rm3/h, Em3/h)
 Working-range flow V = min.÷max (The Bidder shall specify such data in Nm3/h,
Rm3/h, Em3/h)
 Rated delivery head
pj (MPa, m)
 Electric motor input power
P (kW)
 Rated efficiency
 (%)
 Rated speed
n (rpm)
 Speed range
n = min.÷max (rpm)
 Working temperature range
t= min.÷max (°C)
 Impeller material
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report




PAGE No.:
84
TOTAL PAGES:
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 Power supply level
(kV)
Plotting of measuring and signaling equipment;
List of measured values and control circuits;
List and description of (i.e., tripping) blocking conditions (protections);
Equipment noise level (dB);
We require that the bid proposes and describes the fan capacity control method.
PS 10.05 Flue Gas Ducts









Basic technical and functional description, layout. In particular, this shall include the
description of the layout of the flue gas duct connection to the existing Stack 3 and Stack 2
and related modifications to the flue gas ducts of all Boilers K14÷K12 connected to these
stacks;
Basic technical and functional description of the emission monitoring system;
Dimensions and length of the individual flue gas duct sections;
Shut-off, control and safety elements – basic dimensions;
Flue gas duct thickness (mm);
Material specifications;
Paint system - paint structure and number;
Insulation – thermal insulation materials, insulation coverage materials, insulation and
insulation coverage thickness (mm);
List of measured values and control circuits.
PS 10.06 High-Pressure Air Station
 Plotting of measuring and signaling equipment;
 List of measured values and control circuits;
 List and description of blocking (i.e., tripping) conditions (protections).
DPS 10.06.01 Compressor Station
In its bid, the Bidder shall specify the following data for each compressor separately:
 Total current compressed air demand of all process equipment of the K14 Boiler
desulfurization unit (Nm3/h under Normal Air Conditions) to be covered by the
Compressor Station production;
 Basic technical and functional description, layout;
 Compressor type;
 Unit structure;
 Compressor efficiency mj (Nm3/h) at an overpressure of p=XXX (to be specified by the
Bidder) MPa in the compressor discharge section;
 Efficiency range (Nm3/h) at an overpressure of p=XXX (to be specified by the Bidder)
MPa in the compressor discharge section;
 Rated pressure values in the intake and discharge sections (MPa-abs);
 Maximum operating pressure in the discharge section in MPa (abs);
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
85
TOTAL PAGES:
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 Compressor characteristics (pressure, efficiency, input power) with a graph of working
areas and nominal duty point. The characteristic axes shall be in the following units:
discharge pressure (MPa-abs), input power (kW), efficiency (%), efficiency under
intake conditions (Nm3/h). The intake conditions shall be given by the pressure of
101,325 Pa, temperature of 20 °C and humidity of 60%;
 Compressor efficiency j (%);
 Compressor electric motor input power (kW);
 Compressor power supply level (kV);
 Compressor electric motor speed (rpm);
 Specific energy consumption for the individual compressors (kWh/Nm3);
 Air temperature at the individual compressor outlets.
DPS 10.06.02 Compressed Air Treatment









Basic technical and functional description, layout;
Required compressed air overpressure at the Sub-Building Object (DPS) inlet;
Total production of treated compressed air per individual drying levels, (we expect
compressed air to be dried to +3°C and possibly to -40 °C) for the desulfurization needs
under the so-called Normal Conditions, i.e., absolute temperature of 20°C, humidity of 0 %
and overpressure at the compressor discharge section – to be specified by the Bidder;
Dryer type;
Rated dryer efficiency mj (Nm3/h) – related to the intake conditions – pressure of 101,325
Pa, temperature of 0 °C and overpressure at the compressor discharge section – to be
specified by the Bidder;
Dryer efficiency range (Nm3/h);
Dryer maximum pressure drop in MPa;
Medium dew point in °C;
Power supply level for the dryers (kV).
DPS 10.06.03 Compressor Station Air Conditioning System



Total air demand;
Basic technical and functional description, layout;
Data regarding the used noise silencers.
PS 10.07 Low-Pressure Air Station



Plotting of measuring and signaling equipment;
List of measured values and control circuits;
List and description of blocking (i.e., tripping) conditions (protections).
In its bid, the Bidder shall specify the following data for each unit separately:



Center:
Order No.:
Basic technical and functional description, layout;
Unit type;
Unit structure (operation + standby), individual unit efficiency;
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report












PAGE No.:
86
TOTAL PAGES:
118
Unit efficiency mj (Nm3/h) under NAC and at an overpressure of p=XXX (to be specified by
the Bidder) MPa in the unit discharge section;
Efficiency range (Nm3/h) under NAC and at an overpressure of p=XXX (to be specified by
the Bidder) MPa in the unit discharge section;
Rated pressure in the intake and discharge section (MPa-abs);
Maximum operating overpressure (MPa-abs);
Unit characteristics (pressure, efficiency, input power) with a graph of working areas and
nominal duty point. The characteristic axes shall be in the following units: discharge
pressure (MPa-abs), input power (kW), efficiency (%), efficiency under intake conditions
(Nm3/h). The intake conditions shall be given by the pressure of 101,325 Pa, temperature
of 20 °C and humidity of 60%;
Blower efficiency j (%);
Unit electric motor input power (kW);
Power supply level for the units (kV);
Unit electric motor speed (rpm);
Numbers and parameters of the individual mechanical process units of the Low-Pressure
Air Station – air cleaning equipment, air receivers etc.;
Equipment noise level (dB);
Data regarding the used noise silencers.
PS 10.08 Outdoor Distribution Piping
The Bidder shall specify the following data for the individual pipe branches:









Basic technical and functional description, layout;
Pipe section material specifications;
Dimensions and length of the individual DN sections;
Pressure level - PN (bar);
Shut-off, control and safety elements – basic dimensions and characteristics;
Pipeline thickness (mm);
Paint system - paint structure and number;
Insulation – thermal insulation materials, insulation coverage materials, insulation and
insulation coverage thickness (mm);
List of measured values and control circuits.
PS 10.09 Sorbent Management System
DPS 10.09.01 Main Sorbent (CaO) Storage Silo
DPS 10.09.03 Sorbent Treatment Plant and Ca(OH)2 Day Silo
For the silos, the Bidder shall specify the following data:

Basic technical and functional description, layout;

Total silo volume (m3);

Effective silo volume (m3);

Largest silo diameter (m);

Total silo height (m);

Silo shell material;
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report









PAGE No.:
87
TOTAL PAGES:
118
Silo shell thickness;
Paint system - paint structure and number;
Plotting of measuring and signaling equipment;
List of measured values and control circuits;
List and description of blocking (i.e., tripping) conditions (protections);
Measures against silo sorbent agglomerations;
Period for which sorbent can be stored in the silo without agglomeration and adherence;
Description of measures taken against sorbent leaks into receiving bodies (water streams);
Plant operation and maintenance requirements.
For the sorbent treatment (we expect CaO slaking to obtain Ca(OH)2), the Bidder shall provide
the following:

Basic technical and functional description, layout;

Efficiency of the sorbent treatment plant producing a final sorbent product – we expect
Ca(OH)2 (kg/h);

Maximum current water demand for sorbent treatment (kg/h);

Required quality of water designated for sorbent treatment;

Installed power of the plant (kW);

Voltage level of the installed electric consumers (V) and their installed power (kW);

Equipment noise level (dB).
DPS 10.09.02 Sorbent Conveyance





Basic technical and functional description, layout;
Conveyance capacity (kg/h);
Total conveyance line length (m);
Installed power of electric consumers (kW);
Equipment noise level (dB).
PS 10.10 Desulfurization Product Management System
DPS 10.10.01 Product Conveyance







Basic technical and functional description, layout;
Conveyance capacity (kg/h);
Total conveyance line length (m);
Installed power of electric consumers (kW);
Maximum current conveyance air demand (Nm3/h at an overpressure of X,XXX – to be
specified by the Bidder);
Specific compressed air consumption (Nm3/kg of conveyed sorbent);
Equipment noise level (dB).
DPS 10.10.02 Product Storage Silo



Center:
Order No.:
Basic technical and functional description, layout;
Total silo volume (m3);
Effective silo volume (m3);
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report











PAGE No.:
88
TOTAL PAGES:
118
Largest silo diameter (m);
Total silo height (m);
Silo shell material;
Silo shell thickness;
Paint system - paint structure and number;
Plotting of measuring and signaling equipment;
List of measured values and control circuits;
List and description of blocking (i.e., tripping) conditions (protections);
Measures against silo sorbent agglomerations;
Period for which sorbent can be stored in the silo without agglomeration and adherence;
Description of measures taken against sorbent leaks into receiving bodies (water streams).
PS 10.11 Industrial Vacuum Cleaner






Basic technical and functional description, layout of the designed units;
Specification of the plant deliveries and assemblies;
Suction capacity of industrial vacuum cleaner units in Nm3/h separately for each designed
unit;
Input power of electric motors of each designed unit in kW;
Plotting of measuring and signaling equipment;
Equipment noise level (dB).
PS 10.12 Heavy-Current Equipment and Distribution Lines
In its bid, the Bidder shall specify the total installed power needed.
Moreover, the Bidder shall specify considered types and manufacturers of:

motors;

switchgear instrumentation;

frequency converters (provided that they are included in the bid).
PS 10.13 Control System
In its bid, the Bidder shall specify:

ACS and I & CS instrument and equipment types and manufacturers;

Number of added CS I/O tanks.
PS 10.14 Camera System




description of the proposed system;
list of monitored areas;
number of proposed cameras for each individual area;
technical parameters of the cameras and their accessories.
SO 10.101 Demolitions

Center:
Order No.:
Description of demolition scope;
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report

PAGE No.:
89
TOTAL PAGES:
118
Specification of demolished materials structured by the individual Waste Groups in tons or
m3.
SO 10.102 Desulfurization Unit Building

Basic technical and functional description of civil engineering structures, layout design;

Basic dimensions of the building, i.e., length x width x height in m.
SO 10.103 Civil Engineering Structures for Outdoor Process Lines and Equipment

Basic technical and functional description of civil engineering structures, layout description.
SO 10.104 Modifications to Existing Stack

Basic technical and functional description of modifications to the existing Stack 3 and Stack
2.
SO 10.105 Waste Disposal

Specification of expected waste types structured as per the individual Waste Classes and
specified in tons.
SO 10.201 Construction Work for Utility Relocations



Basic technical and functional description of civil engineering structures, layout description;
Total weight of steel structures in tons;
Total volume of concrete foundation structures in m3.
SO 10.202 Pipe and Conveyance Bridges



Basic technical and functional description of civil engineering structures, layout description;
Total weight of steel structures in tons;
Total volume of concrete foundation structures in m3.
SO 10.203 Fire Main and Fire Fighting Equipment









Basic technical and functional description, layout description;
Pipeline section material specifications;
Dimensions and length of the individual DN sections;
Pressure level - PN (bar);
Shut-off, control and safety elements – basic dimensions and characteristics;
Pipeline thickness (mm);
Paint system - paint structure and number;
Hydrant specifications, (finish, location and number);
Fire extinguisher specifications (finish, location and number).
SO 10.204 Stormwater Sewerage
SO 10.205 Sanitary Sewerage
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report





PAGE No.:
90
TOTAL PAGES:
118
Basic technical and functional description, layout description;
Pipeline section material specifications;
Pipeline thickness (mm);
Dimensions and length of the individual DN sections;
Specifications of channel pits and inlets (number and finish).
SO 10.206 Roads and Paved Ways


Basic technical and functional description of civil engineering structures, layout description;
plotting in the ground and layout plans;
Total scope of roads and paved areas structured by individual types in m2.
SO 10.207 Outdoor Lighting


Basic technical and functional description, layout description;
Specification of lighting fixtures (number, light intensity and design).
The Technical Part of the bid shall have the following contents:
A) Technical Report to the extent of the above-mentioned requirements;
B) Drawing Part to the following extent:
 Layout of the designed process equipment and buildings with specific requirements for built-up
areas (i.e., building dimensions: length x width x height, handling and operating areas, roads and
ways);
 PID Block Diagram for the process equipment;
 Flow Diagram for heavy-current distribution lines, control equipment and I & CS circuits.
6.
PROVISION OF INPUTS
The submitted Technical Part of the Tender Documentation shall be a basis for the Bidder to make its
comprehensive bid for the above-mentioned functional work. If the Bidder finds out that the provided inputs are
insufficient or incorrect for making a full and technically correct bid, the Bidder shall ask the Employer to
supplement or specify such inputs. In the event that the Employer owns or is able to produce the requested
inputs, then such inputs shall be provided to the Bidder.
Inputs provided in a text or drawing form, in particular, those that describe and represent the current situation
shall be verified by the Bidder to the extent necessary (as per the designed process equipment scope) on site.
Potential differences between the data set out in the provided inputs and actual situation shall be taken into
account by the Bidder making its bid.
7.
ANNEXES TO TECHNICAL REPORT
7.1.
Description of Selected Components of Existing State
7.1.1.
Expected Basic Parameters of Boilers K14÷K12 after
Reconstruction into Dry-Bottom Boilers
Rated thermal output
Minimum thermal output
Center:
Order No.:
ŘS- 4300
ETB11C
161 MW
80 MW
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
Wet flue gas flow 1)
Average O2 content in flue gases downstream of EP
Flue gas temperature downstream of EP
Direct boiler efficiency at rated output – average
Dust (solid particle) concentration downstream of EP 2) 3)
Notes:
PAGE No.:
91
TOTAL PAGES:
118
266÷270 thousand Nm3/h
7-30 %
110÷130 °C
90.5 %
20÷60 mg/Rm3
1) at rated output and normal conditions (101,325 Pa, 0°C, wet flue gases);
2) reference conditions – 101,325 Pa, 0°C, 6% O2 in dry flue gases;
3) at the current state of electrostatic precipitators.
7.1.2.
Outside Flue Gas Ducts of Boilers K14÷K12 – Existing State
Flue gases are exhausted from the combustion chamber through the second pass of the boiler. Under the
lower air heater, flue gas ducts run horizontally through the coal mill area below an elevation of  7,5 m. The
flue gas ducts then leave the Boiler House for an outdoor area, where they form a vertical section of the flue
gas ducts and terminate in two parallel branches of the electrostatic precipitator. In the horizontal sections,
louvers are installed.
At the electrostatic precipitator outlet, both ducts merge into one duct, which enters the ID fan intake section.
At the flue gas duct outgoing from the ID fan, there is a gas emission monitoring system. A stack flap and solid
particle monitoring system are installed in a horizontal section of the flue gas duct with a diameter of 3,150
mm.
7.1.3.
Electrostatic Precipitators of Boilers K14÷K12
K14 Electrostatic Precipitator Technical Data:
Manufacturer
Type
Year of Manufacture
Serial Number
Number of Sections
Number of Rows
Number of US Electrodes in Row
Operating Temperature
Maximum Temperature
ZVVZ Milevsko
EKH 2-28-12-3-8-200-4-1 (PM 12 4356)
1997
974 037
2 x 3 in parallel
28
8
160 – 170 °C
195 °C
K13 Electrostatic Precipitator Technical Data:
Manufacturer
Type
Year of Manufacture
Serial Number
Number of Sections
Number of Rows
Number of US Electrodes in Row
Operating Temperature
Maximum Temperature
ZVVZ Milevsko
EKH 2-28-12-3x8-180-3,5-1 (PM 12 4356)
1993
934 054
2 x 3 in parallel
28
8
160 – 170 °C
195 °C
K12 Electrostatic Precipitator Technical Data:
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
Manufacturer
Type
Year of Manufacture
Serial Number
Number of Sections
Number of Rows
Number of US Electrodes in Row
Operating Temperature
Maximum Temperature
7.1.4.
PAGE No.:
92
TOTAL PAGES:
118
ZVVZ Milevsko
EKH 2-28-12-3 (8+8+8)-180-3,5-1 (PM12 4356)
1991
914 058
2 x 3 in parallel
28
8
160 – 170 °C
195 °C
Induced-Draft Fans of Boilers K14÷K13
K14 Boiler ID Fan Technical Data:
Type
Weight
Flue gas flow, incl. margin
Total fan pressure
Flue gas temperature
Flue gas specific weight
Impeller diameter
Impeller speed
Fan shaft input power
Moment of inertia for the fan
ARG 2500-3-45°- as per PM 12 2322.2
15,800 kg
145.7 m3/s
1,600 Pa
max. 195 °C
0.77 kg/m3
2,500 mm
593 rpm
343 kW
909 kg.m2
K14 Boiler ID Fan Electric Motor Technical Data:
Type
Power
Speed
Voltage
Frequency
ARNR 560 b-10
400 kW
593 rpm
400 V
50 Hz (incl. frequency converter)
K13 Boiler ID Fan Technical Data:
Type
Flue gas flow
Total fan pressure
Flue gas temperature
Specific flue gas weight
Impeller diameter
Impeller speed
Input power at fan shaft
Moment of inertia for the fan
ARB 2500-2-45°
161 m3/s
2,200 Pa
max. 195°C
0.77 kg/m3
2,500 mm
595 rpm
506 kW
909 kg.m2
K13 Boiler ID Fan Electric Motor Technical Data:
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
Type
Power
Speed
Voltage
Frequency
PAGE No.:
93
TOTAL PAGES:
118
4V208-10HV
630 kW
595 rpm
6,000 V
50 Hz
K12 Boiler ID Fan Technical Data:
Type
Flue gas flow
Total fan pressure
Flue gas temperature
Specific flue gas weight
Impeller diameter
Impeller diameter
Input power at fan shaft
Moment of inertia for the fan
ARB 2500-2-45°
161 m3/s
2,200 Pa
max. 195°C
0.77 kg/m3
2500 mm
595 rpm
506 kW
909 kg.m2
K12 Boiler ID Fan Electric Motor Technical Data:
Type
Power
Speed
Voltage
Frequency
7.1.5.
4V208-10HV
630 kW
595 rpm
6,000 V
50 Hz
Emission Monitoring
Gas Emission Monitoring:
The gas emission monitoring system is installed in the analyzer cabinet, which is located in the emission
monitoring room. The analyzer cabinet is connected through a sampling probe and heated sampling hose with
the flue gas duct. At the boiler flue gas duct, there is one sampling probe with a heated hose for emission
monitoring. The gas emission monitoring system uses an instrument of Hartmann and Braun Advance Optima
System – URAS, and the sample is prepared in the equipment consisting of HaB and M&C instruments. The
sampling probe of the gas emission monitoring system is installed on the horizontal round sheet metal flue gas
duct. The sampling probe is connected through a sloping cable line with the relevant cabinet.
The analysis of the gas emissions in flue gases is carried out by a unit consisting of instruments and
accompanying equipment assembled into an instrument chain. The devices are mounted to the analyzer frame
in Cabinet U810, which is situated in the emission monitoring room.
Solid Emission and Flue Gas Temperature Monitoring
The solid emission monitoring system is carried out by an optical principle-based instrument - an OMD41.03
dust meter of Sick, which works on the basis of the in-situ NVIS absorption method.
The dust meter is installed on a straight section of the round sheet metal flue gas duct running to the stack.
The instrument axis is horizontal. The active length of the instrument ray is 3,150 mm. The dust meter is
accessible from an operating platform. Next to the solid particle emission monitoring device, a Pt100
thermometer is installed in a well to measure the flue gas temperature.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
94
TOTAL PAGES:
118
Through unified current signals, the boiler control system receives measured emission concentration data from
SICK and URAS analyzers. The control system adjusts such data for the environmental technician needs, and
the data are then displayed on the boiler control system monitors.
O2 Measurement:
A zirkonia oxygen analyzer (a YOKOGAWA ELETRIC CORPORATION probe) is used for this measurement.
In the boiler control system, this value is displayed continuously, and as such, it does not depend on the status
or signal of Boiler “ON/OFF”.
7.1.6.
Stacks
7.1.6.1
Stack 3
Flue gases from Boilers K13 and K14 are exhausted into the air through Stack 3.
Stack 3 Basic Technical Data:
Connected boilers
Stack height
Stack crown diameter
Flue gas velocity at stack outlet
K13, K14
100 m
5.6 m
10.3 m/s
The technical description of the boiler is provided in Annex1, Part 07÷09.
7.1.6.2
Stack 2
Flue gases from Boiler K12 are exhausted into the air through Stack 2.
Stack 3 Basic Technical Data
Connected boiler
Stack height
Stack crown diameter
K12
100 m
5.6 m
The technical description of the boiler is provided in Annex 1, Part 07÷09.
7.1.7.
Fly Ash Silos
For the purpose of fly ash storage, there are three fly ash silos, more specifically, Fly Ash Silo 1, 2 and 3, each
with an effective volume of 750 m3. All the three silos have the same structural design and dimensions. They
were made by welding steel frames.
Technical parameters of the fly ash silos:
Effective volume of one silo
Total number of the silos
Total effective volume
Silo diameter
Height of cylindrical section of the silo
Height of conic section of the silo
Outlet hole
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
750 m3
3 pc
2,250 m3
8m
14.5 m
5.281 m
600 mm
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
95
TOTAL PAGES:
118
The conic section of the fly ash silos is equipped with outer insulation.
Insulation structure:
insulation plates - thickness: 100 mm
galvanized strips – thickness: 0.55 mm
Surface finish:
cone – sheeting, thickness: 0.55 mm
connected with TEKS bolts (4.8 x 19 mm) provided
with an elastomer pad
All the three existing silos are located in the common building near Railway Siding Track 6. The building
consists of a supporting steel structure, which also bears the silos. The structure is covered with a light roof
and is cladded. In 2013, a fourth silo with the same size will be constructed within the Project titled “Dry Fly
Ash Extraction from Boilers K1, K2, K3, K4 and K5”. This silo shall be situated in the same row including the
existing silos.
7.2.
Work Implementation Conditions
 During the Contract realization, the Bidder shall comply with the applicable codes and standards
(Dalkia Česká republika., a.s. holds a ČSN EN ISO 14 001 Certificate). In particular, the Bidder shall
ensure that there is no leak of oil or other substances into the sewer. The waste disposal shall be
ensured by the Bidder at its own costs, and before the comprehensive testing is commenced, the
Bidder shall deliver the Employer documents regarding an environmental disposal of such waste.
 During the work and assembly, the Bidder shall ensure that the operating personnel have free access
to the existing equipment in order to operate such equipment and not to affect the operating personnel
safety.
 When assembling other accessories (piping, fittings and pressure gauges), the Bidder shall carry out
such assembly for the pipeline to be accessible, firmly fixed and transparent to the operating
personnel and not to hinder the operating personnel from operating and checking any other control
elements of the unit.
 The noise level of the delivered equipment shall not exceed the allowable hygienic standards.
 During the Contract realization, the process equipment and elements currently used at the site, such
as oil fillings, lube oils, fittings, controls, shall be used to the maximum possible extent.
 If it is necessary to shut down the plant for the new process equipment to be installed, the selected
Bidder shall meet the Employer’s needs, while considering the local operating and climatic conditions.
 If any unexpected situation occurs during the Contract realization, the Bidder shall make a note thereof
in the Construction Log and shall promptly notify the Employer thereof.
 When moving along the site roads and ways, the Bidder’s employees and vehicles shall only use the
roads and ways specified for them.
 After the work is completed, the Bidder shall reinstate the construction site, including the access ways.
 All newly designed and existing modified equipment must comply with (i) the requirements set out in
the applicable Czech codes and standards (ČSN) and (ii) the requirements for the designed process
equipment, as set out herein. In particular, it must comply with the required emission, noise and
vibration limits. Methods of ensuring the compliance with such requirements shall be part of the work.
 The Contractor Documentation shall include a Protocol of Determination of External Influences.
 The proposed process equipment design must correspond to the specified environment.
 The layout of the individual buildings shall meet the fire protection requirements, distance separation
from the adjacent buildings and structures and logistic requirements.
 A considerable section of the area along the Opava River has been declared a flooding area. During
the extreme flooding in 1997, almost the whole Třebovice Power Plant site was flooded, except for
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report










PAGE No.:
96
TOTAL PAGES:
118
some elevated locations. At the location of the main production block, the flood height was approx.
750 mm above the floor on ±0.000m.
Due to the fact that the construction is to be carried out in the flood area, the new equipment important
for the newly installed process equipment operations shall be situated above the flood wave level, (i.e.,
electrical equipment of the operations, pumps, etc.).
The engineering design of the newly delivered process equipment must contain all links to the related
equipment.
The proposed technical measures must, if possible, use the existing equipment to the maximum
possible extent provided that such existing equipment shall comply with the specified technical
requirements.
The work subject shall be the delivery and assembly of all insulations. Inside the buildings, the
insulations shall be covered with mineral wool and Al sheeting. If any distribution pipeline is designed
to run in a duct, then its insulation shall be covered with galvanized metal sheeting and three paint
layers.
If the activities performed by the selected Bidder during the Contract realization result in damage to
the existing insulations systems, (including the pipe systems that are not included in the work subject),
then such damaged insulation shall be replaced with new insulation. This activity shall be part of the
price and work.
The surface temperature of heat production and distribution equipment section that are to be operated
or with which the operator may come into contact shall not exceed the values defined by the
applicable sanitary regulations at the ambient temperature of (20±5 °C).
If within the work, any space for the new process equipment is cut out in the existing horizontal and
vertical civil engineering structures, then after the old process equipment is dismantled to the extent
necessary for the implementation of proposed modifications and possibly, after any horizontal or
vertical civil engineering structures are demolished, such affected structures shall be reinstated, as
required by the newly designed process equipment and occupational safety. This activity shall be part
of the price and work.
The work shall also include all necessary new steel structures, platforms, walkways, ladders and
handrails in compliance with the applicable Czech codes and standards.
If required by the new process equipment installation, a static assessment shall be carried out for the
existing floors and supporting structures. Based on conclusions of any such static assessment,
relevant corrective work shall be performed. Such activities shall be included in the work.
All newly designed and delivered process equipment shall be new and unused.
The work shall also include the delivery of the process equipment control system and superior control
systems, as required by the Tender Documentation. It is necessary to deliver all hardware and
software which shall, perfectly without any problem, allow (i) the process to be monitored, visualized
and controlled, (ii) data to be archived, (iii) operating records, including heat consumption metering
data records, to be made, (iv) failures to be registered, and (iv) a heat demand coverage trend to be
monitored.
Furthermore, the selected Bidder must meet, during the work performance, the following conditions set out in
the Conclusion of Declaratory Proceedings carried out in accordance with Act 100/2001:
 The parameters of the installed process equipment relating to the pollutants, including, but not limited
to, solid particles, NOX, SO2, shall meet the BAT requirements applicable to the given equipment, and
requirements set out in the European Parliament and Council Directive No. 2010/75/EU on industrial
emissions, dated November 24, 2010.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
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 Any adverse effects of construction works associated with bringing construction materials and process
equipment to the site must be reduced by the selected Bidder to the minimum. When transporting bulk
materials or any other dusty materials, the vehicle must be provided with a tarpaulin.
 During construction work performance, it is necessary to meet all the principles of underground and
surface water protection.
 During any dry weather, it is necessary to effectively reduce dust levels at the construction site (e.g.,
by spraying or covering bulk materials, cleaning the access roads and vehicles leaving the
construction site).
 The Bidder must (i) equip the construction site with sufficient remediation equipment; (ii) maintain all
machinery moving at the site in good technical condition; and (iii) inspect such machinery as to
potential operating liquid leaks. Any maintenance and repairs of such machinery, including any fuel
and lubricant refilling, must be solely performed by the Bidder at the locations designated and adjusted
for such purposes.
 During the construction, the Bidder must take actions to minimize the noise loads, i.e., in particular, the
Bidder shall use machinery and equipment with reduced noise levels, switch off the machinery and
equipment during breaks at work and make sure that the period of using noisy machinery is reduced
(e.g., by means of machinery deployment sequence, etc.).
 The Bidder must (i) collect any waste produced during the construction, (ii) sort it by the individual
types, (iii) secure it against theft and leak and subsequently, (iv) deliver such waste for further
utilization, recycling or disposal to persons authorized for such activities by applicable law. The Bidder
must ensure the waste recycling or disposal with such persons on a contractual basis. The Bidder
must keep relevant waste management records during the construction.
7.3.
Common General Requirements for Scope and Implementation of
Operating Sets and Building Objects
The scope and technical description of the expected process equipment within the Operating Sets (PS) and
Building Objects (SO) is provided within the descriptions of the individual Operating Sets (PS) and Building
Objects (SO). The sections below specify the minimum general requirements for the Sub-Operating Sets
(DPS) and Sub-Building Objects (DSO) and parts thereof. If no specific technical description or requirements
for the design or function are provided in the descriptions of Operating Sets (PS) and Building Objects (SP)
within Chapter 3, then at least the following general requirements shall apply thereto. Based on such minimum
general requirements, the Bidder shall then present a specific engineering design and specific scope in its bid
and shall reflect such a design and scope of the work in the bid price.
7.3.1.
General Requirements for Operating Sets
Part 01
Mechanical Technology
shall particularly include the following equipment:
Machinery and Equipment:
In compliance with the requirements under Chapter 7.3 (Common General Requirements for
Operating Sets and Building Objects), this section particularly includes any machines and process
equipment necessary for achieving the required equipment function and technical parameters of
the work and safe, economical and reliable operation. In its bid, the Bidder shall describe in detail
each individual equipment and technological process and shall include the same in the price.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Pipelines and Fittings
This section comprises all pipelines within the process equipment. In compliance with the
requirements under Chapter 7.3 (Common General Requirements for Operating Sets and
Building Objects), this section shall also include:

delivery and assembly of connection, deaeration, drain and any other piping, flanges,
transition pieces and expansion bends;

delivery and assembly of relevant shut-off and control fittings, including drives, safety
valves and non-return flap valves;

delivery and assembly of welded-on pieces, wells, pulse piping and other accessories for I
& CS.
Steel Structures and Fitting Products
In compliance with the requirements under Chapter 7.3 (Common General Requirements for
Operating Sets and Building Objects), this section includes all steel structures for the process
equipment, fitting products, such as staircases, walkways, ladders, supports, platforms for access
to and operation of the equipment, handrails, brackets, pipe fittings and hangers within the
Operating Sets (PS) and Sub-Operating Sets (DPS).
Paint Systems and Insulations
The paint systems shall be carried out on the delivered equipment and structural elements to
provide protection against atmospheric corrosion in compliance with the standardization
requirements set out in Chapter 7.4 hereof, (Standardization and Typification).
Any equipment with a medium temperature greater than 50 °C shall be provided with protective
thermal insulation implemented so that the thermal insulation surface temperature shall not
exceed 50 °C in compliance with the standardization requirements set out herein in Chapter 7.4.
(Standardization and Typification).
Fitting Products and Steel Structures
The work shall include any fitting product that is part of the Building Object (SO) and is not
included in any Operating Set (PS) (e.g., steel staircases, platforms, ladders, walkways,
handrails, etc.). This Operating Set shall also include all steel structures proposed within this
Building Object.
The engineering design, delivery boundaries, delivery and assembly scope shall be described
and included by the Bidder in the total work price based on the requirements set out herein.
Other Equipment
The work subject shall also include any other mechanical process equipment that is not specified
herein and that is however necessary for the reliable and safe operation of the work with the
required parameters. The Bidder shall describe such parts in its bid and shall include them in the
bid price.
Part 02
Center:
Order No.:
Heavy-Current Equipment and Distribution Lines (within the Sub-Operating Set)
This Sub-Operating Set (DPS) shall particularly include the following elements and equipment:
 any heavy-current equipment and distribution lines ensuring safe and reliable operation of
the proposed process equipment, including protections, security and grounding;
 any cabling and cable lines to the extent of the delivered process equipment.
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
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Requirements for the Sub-Operating Set (DPS):
 All the protections and controls installed in connection with the processed equipment
designed by the Bidder shall be installed in the switchgear near the installed process
equipment;
 The drives shall be equipped with local control boxes allowing the equipment to be
switched to manual control mode in the event that maintenance is carried out;
 If it is necessary to ensure a back-up power supply unit for the designed process
equipment, then such a unit shall be part of the delivery, and the Bidder shall expressly
mention such a fact in its bid.
Part 03
Instrumentation and Control System (I & CS) (within the Sub-Operating Set)
The control system for the technological process shall be designed as a multi-parameter control
system. The whole technological process chain shall be controlled by a programmable device. All
the process parameters shall be read and transformed into actuating variables. The technological
process shall be controlled by a compact modular system with the possibility of extension. The
bid shall also include a communication protocol, data transmission, visualization and archiving.
The system shall be equipped for an option of remote control from the Operator Stations.
The I & CS and automated control system shall ensure:
 measurement of operating conditions of working substances and media;
 display of working substance parameters (temperature, overpressure, flow rate,
concentration, etc.) on the local control box monitor near the installed process equipment;
 possibility of controlling and setting up the working substance and media parameters from
both the control system and control box panel;
 automated unmanned, safe and reliable operation of the process equipment in the required
control range in compliance with the required parameters, as described herein;
 signaling of faults;
 data transmission (in particular, data regarding faults, trends, basic parameters of working
substances and media, etc.) to the control system for control, monitoring and archiving
purposes.
7.3.2.
General Requirements for Building Objects
Part 01
Demolitions
The subject of this Part shall be any demolitions of civil engineering structures, as required by the
technological and civil engineering designs proposed by the Bidder.
The demolitions shall be carried out to the extent necessary. During the demolitions, the
associated or adjacent civil engineering structures must not be affected nor must the adjacent
process equipment be damaged. Debris arising from the demolitions must be removed to a
relevant dump. The steel structures that are parts of the demolitions shall be heat-treated to
obtain chargeable scrap, which shall be delivered to a scrap metal company. Revenues from
scrap sales shall belong to the Customer.
Part 02
Groundwork and Ground Shaping
The subject of this Part shall be any earthwork associated with the implementation of civil
engineering sections and ground shaping, such as excavation for civil engineering substructures
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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and utility lines, ground formation before performance of construction works, final ground shaping
after the construction works are completed, etc.
Part 03
Foundations and Underground Building Structures (Lower Building)
The subject of this Part shall be all foundations and underground civil engineering structures
required by the technological and civil engineering design proposed by the Bidder.
The foundation structures shall be designed so as to comply with the designed static and dynamic
effects of the civil engineering structures and process equipment installed in the building. In
general, the foundations and civil engineering structures are constructed in a non-freezing depth.
They must resist underground water and soil moisture. Their design must comply with the
requirements set out in Regulation 268/2009 on technical requirements for buildings and other
requirements of the Czech National Standards, Czech codes and standards.
Part 04
Horizontal and Vertical Overhead Civil Engineering Structures (Upper Building)
The subject of this Part shall comprise all horizontal and vertical aboveground civil engineering
structures and underground civil engineering structures required by the technological and civil
engineering design proposed by the Bidder.
The aboveground civil engineering structures shall be designed so as to comply with the
designed static and dynamic effects of the civil engineering structures and process equipment
installed in the building. The process equipment foundations shall be made of reinforced concrete
and shall be provided with sloping oversite concrete. The outdoor structures shall be coated with
a material ensuring hydro-insulation and concrete protection.
The designs of all civil engineering structures must comply with the requirements set out in
Regulation 268/2009 on technical requirements for buildings and other requirements of the Czech
National Standards, Czech codes and standards.
Part 05
Electrical Wiring
The subject of this Part shall be any building wiring required by the technological and civil
engineering design proposed by the Bidder. The building wiring shall be designed in compliance
with (i) general requirements set out in the Czech codes and Czech National Standards, (ii)
building character, and (iii) requirements for operation and maintenance of the installed process
equipment and requirements for building maintenance.
Part 06
Sanitary Equipment and Distribution Lines
The subject of this Part shall be any sanitary equipment and distribution lines (water distribution
lines, sanitary objects, sewerage, etc.) structures required by the technological and civil
engineering design proposed by the Bidder and firmly connected with horizontal and vertical civil
engineering structures of the Building Object. The sanitary equipment and distribution lines shall
be designed in compliance with (i) general requirements set out in the Czech laws, regulations
and Czech National Standards, (ii) building character, and (iii) requirements for operation and
maintenance of the installed process equipment and requirements for building maintenance.
Part 07
Heating
The subject of this Part shall be any equipment designated for heating the buildings. Spaces shall
be heated if required by the character of the building use and installed process equipment. The
dimensions and design of the equipment must also ensure the required air temperature in the
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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building areas depending on the set temperature. The equipment must be designed in
compliance with the Czech laws, regulations and Czech National Standards.
Part 08
Air Exchange
The subject of this Part shall comprise any equipment designated for air exchange in the building
areas. The air exchange intensity in the individual areas must correspond to the character of use
and installed process equipment. The equipment must be designed in compliance with the Czech
laws, regulations and Czech National Standards.
Part 09
Fitting Products and Steel Structures
The subject of this Part shall comprise any fitting products and steel structures, such as steel
staircases, platforms, handrails, ladders, walkways, brackets, steel structures, hangers, etc.,
required by the technological and civil engineering design proposed by the Bidder.
Part 10
Lifting and Transport Equipment
For the performance of repairs and maintenance and replacement of equipment, the buildings
and their sections above large and heavy process equipment shall be provided with grooves for
pulley blocks and hoists designated for handling the process equipment. The bid shall also
include the delivery of a pulley block with a relevant load-carrying capacity.
Part 11
Plumbing Products
The subject of this Part shall comprise any plumbing products, such as roof sheeting, transparent
and non-transparent holes, eaves gutters and rainwater pipes, etc., which shall be included in the
Building Object.
Part 12
Utility Distribution System and Lines
The subject of this Part shall comprise any outdoor utility distribution lines, (which are firmly
connected with horizontal and vertical civil engineering structures of the Building Objects), such
as service water, drinking water, natural gas, stormwater sewer, sanitary sewer, fire main,
electricity and other connections within the Building Object. The water piping shall be laid in a
non-freezing depth or shall be thermally insulated so that freezing shall be eliminated under any
operating condition, (i.e., also in the case of zero flow).
Part 13
Paint Systems, Anticorrosive Coating, Insulations
The subject of this Part shall comprise any outdoor and indoor paints and coats of fitting products,
steel structures and plumbing products, utility piping, which shall be included in the building
object. Requirements for special anti-corrosive finish are specified within the description of the
Building Object (SO) or Sub-Building Object (DSO) or the Bidder shall propose such requirements
by itself and shall substantiate their application. This Part shall also include any insulation of the
distribution piping within the utility distribution system.
7.4.
Standardization and Typification
7.4.1.
Technical Standards, Work Performance
All the applicable Czech National Standards ČSN, ISO standards shall be binding upon the Bidder. Any
equipment must be delivered in high quality, which shall be documented by relevant Certificates. When
designing any process equipment and its functions, the Bidder and its subcontractors shall be based on their
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
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best knowledge, engineering and other experience. If the Employer prefers a specific engineering design, then
it is stated herein. The Bidder shall accept such cases provided that they do not affect the warranties.
Preferences unaccepted by the Bidder shall be explained in its bid.
As for the structural design, strength calculation and related material selection, safety, manufacture, testing
and special requirements, it is necessary to comply with the applicable Czech codes and standards. In any
case, the Bidder shall be obliged to ensure by itself the compliance with the Czech standards or an exception
granted by Czech authorities. In the event that no appropriate Czech standard applies, the Bidder shall use
internationally recognized standards, such as DIN, ASME etc.
During the work performance, the Bidder must use products with properties guaranteeing over the required life
time of the work the required mechanical strength and stability, fire safety, hygienic requirements, health and
environment protection, safety at work, noise protection and energy saving. When verifying the product
properties, it is necessary to process within the meaning of the applicable laws and regulations (Section 47 of
the Construction Act).
7.4.2.
Standardization
The Bidder must use efforts to standardize the equipment as much as possible. It is recommended to ensure
equipment of the same type and if possible, also a type of the equipment that is already installed within the
existing process equipment.
7.4.3.
Requirements for Mechanical Technology Part
7.4.3.1
Piping and Accessories
The piping, including its accessories, must comply with all required strength and dimension parameters and
transfer capacity. All the necessary connecting materials and other accessories shall be included in the
Bidder’s delivery. The delivery must comprise all pipelines to be installed within the whole scope of work
delivery and within the required delivery boundaries. After the assembly is completed, the piping shall undergo
required pressure, leak and other tests, which shall be documented by relevant certificates. The supports and
hangers must be made on the basis of Bidder’s experience and in compliance with the applicable Czech
National Standards. The bid must specify the total gross weight of piping and its accessories.
The piping description as per the flowing medium, (i.e., pipe markers and color codes), shall be carried out in a
close cooperation with Třebovice Power Plant personnel in compliance with the applicable Czech National
Standards. The pipe markers shall include the name of the flowing medium, parameters (temperature,
pressure, etc.) and flow direction. The markers and designation used in drawings shall use KKS codes.
The assembly of piping and its accessories must be carried out as the so-called clean assembly in compliance
with Czech National Standards ČSN 38 3360, ČSN 38 3365 and ČSN 13 1075. The tests shall be carried out
under Czech National Standard ČSN 13 0021.
7.4.3.2
Fittings
For the design of process equipment and distribution piping, we prefer applying shut-off flaps, ball valves
upstream of other valves and slide gates provided that such a design is suitable for the proposed process
equipment. Any sectional closures shall allow the equipment to be safely shut down.
7.4.3.3
Flue Gas Ducts
We expect the flue gas ducts to be manufactured at least of 11 353 Class material under the Czech National
Standard or a similar material. The flue gas duct thickness shall be proposed by the Bidder in compliance with
the static and dynamic load of the flue gas duct and in view of the proposed pipe laying length, temperature
stress, corrosion and erosion. The overall flue gas duct thickness shall consist of three parts:
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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Design thickness
(i.e., calculated thickness)
Technological allowance
Corrosion and erosion
allowance
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shall be determined through the strength calculation, considering internal
pressure or negative pressure in the pipeline, static and dynamic load of
the flue gas duct, flue gas duct material, designed laying length and
temperature stress;
this is an allowance for manufacturing inaccuracy and shall be
determined by the manufacturer on the basis of the applied production
technology;
shall be at least 1 mm. In the event that the medium contains a greater
content of abrasive or corrosive substances, this allowance shall be
appropriately increased.
If the delivery includes flue gas duct sections where flue gas condensate gathers and cannot be continuously
drained (for example, expansion bends, etc.), such sections shall be made of a material resistant to acidic
condensate (e.g., suitable stainless steel etc.).
7.4.3.4
Measuring Points
The measuring points shall be prepared so as to comply with all conditions for the subsequent installation of
field instruments. The sampling for pressure measurement shall be carried out under the applicable Czech
National Standards. The sampling line shall be ended with a manometric valve provided with a thread outlet for
installing a gauge with a thread of M 20 x 1.5. The sampling lines for differential pressure measurement shall
be equipped with shut-off or ball valves. The temperature sensor wells shall be seal-welded with a thread of M
20 x 1.5 for the sensor installation.
7.4.3.5
Structural Materials and Internal Anti-Corrosion Protection
General requirements – There shall be a general rule that the Bidder shall be responsible for selecting the
material, and the quality of pressure vessel, pipe and other materials must comply with the requirements set
out in the applicable Czech standards.
In its bid, the Bidder must specify the material quality and applicable standards for any equipment, pipe system
etc., and if possible, the Bidder must also substantiate the selection of such material. The Bidder is requested
to attach a Material Quality Table specifying the material composition, main properties and possibly also its
Czech equivalent.
Corrosion and erosion allowances – The corrosion allowances shall be determined by the Bidder based on
its long-term experience from the equipment that has already been delivered. The corrosion allowances must
be specified in the design for each material group used for the equipment, pipe systems, etc. In the design,
similar data shall also be set out for the erosion allowances.
Internal anti-corrosion protection – Where necessary, internal anti-corrosion protection shall be applied on
the basis of Bidder’s experience and special structure and character of the equipment. Such protection must
be proven satisfactory through long-term operation. Similarly to the materials and corrosion allowances, the
Bidder shall fully be responsible for and guarantee the internal anti-corrosion protection system and its
applications. In its bid, the Bidder shall mention all anti-corrosion protections applied. The Bidder is requested
to provide information on the use, reliability and suitability of the designed anti-corrosion protection system with
reference to the equipment that has been delivered by the Bidder and has successfully been operated for a
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
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long time. The Bidder must also provide information on necessary repairs, repair cycles and periods. The
Bidder shall provide the name of an expected supplier of the anti-corrosion protection system, and the
Employer requires that an experienced manufacturer is selected. The bid shall contain technical specifications
with quality and quantity data on chemical composition and mechanical and physical properties of the
proposed anti-corrosion protection.
7.4.3.6
Steel Structures and Fitting Products
At inaccessible locations and places where fall is pending in the event that any handling is performed, we
require that operating platforms are constructed with ascending ladders. The existing auxiliary steel structures,
such as operating platforms, ladders, supporting stands, etc. must be reinstated after the work is completed.
All operating platforms and ascending ladders shall be manufactured or modified in compliance with ČSN EN
ISO 14122 – 1, 2, 3, ČSN 74 3282, Government Regulation 362/2005 and ČSN 73 2601. The ladder outlets
shall be equipped with automatically closing gates (see ČSN EN ISO 14122-3, Section 7.1.10).
The existing and new steel structures used for the new process equipment shall be provided with a paint
system, (structure – color: RAL 5024 gray blue, handrails, toe boards, ladders – color: RAL 1023 yellow).
WEMA grating shall be galvanized. A static calculation shall be made for any new supporting steel structure.
The platforms shall be provided with signs stating the steel structure load-carrying capacity (in kN/m2) and file
number.
7.4.3.7
Paint Systems
The Bidder is requested to provide in its bid basic data of the designed paint systems to be applied by the
Bidder based on its experience from the existing operations. The data shall be supplemented with approximate
sizes of the areas to be painted separately for any process equipment. The paint system must not use any
environmentally harmful material. In its bid, the Bidder shall specify paint systems proposed for:






new steel structures, non-insulated piping;
repaired existing steel structures and piping;
new galvanized metal sheeting;
repaired galvanized metal sheeting;
new piping under insulation;
repaired existing piping and tanks under insulation.
The Employer recommends the following structure and colors of the paint systems. If a color shade is
specified, then it shall be binding upon the Bidder:
 Machinery and equipment in indoor areas – shall be provided with one priming coat and
two blue topcoats;
 Machinery and equipment in outdoor areas – shall be provided with one priming coat and
three blue topcoats;
 Insulated piping and ducting – shall be provided with one coat under the insulation;
 Galvanized sheeting (to cover the thermal insulation in the indoor areas) – shall be
provided with one reactive coat and two topcoats in the color shade as per the type of
medium flowing through the pipe (to be specified in the design);
 Al sheeting (to cover the thermal insulation in the outdoor areas) – shall be provided with
color strips as per the type of medium flowing through the pipe;
 Steel structures in the indoor areas – shall be provided with one priming coat and two
topcoats in color shade RAL 5024;
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
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 Steel structures in the outdoor areas – shall be provided with one priming coat and gray
topcoats in color shade RAL 5024;
 Fitting products in the indoor areas (handrails, ladders) – shall be provided with one
priming coat and two topcoats in color shade RAL 1023;
 Fitting products in the outdoor areas (handrails, ladders) – shall be provided with one
priming coat and three topcoats in color shade RAL 1023;
 Plumbing products - (roof sheeting, eaves gutters and downcomers) – shall be provided
with one priming coat and three topcoats in color shade RAL 5023;
 Window frames in operating buildings and door wings – shall be provided with one
priming coat and three topcoats in color shade RAL 5002;
 Door frames – shall be provided with one priming coat and three topcoats in color shade
RAL 3020.
7.4.3.8
Insulations
New insulations shall be installed on new fittings and new steel piping. Moreover, new insulation shall be
installed on the existing equipment damaged by the work performance or in the event that it is required to
replace or repair the existing insulation.
Inside the buildings, the insulation shall be covered with mineral wool and Al sheeting. If any channel is
proposed, then its insulation shall be covered with galvanized sheeting. The fittings shall be installed with
removable insulation.
Requirements for Insulations
The Bidder shall propose insulations while meeting the following requirements:
 The equipment shall be provided with insulation so that the surface temperature of any location of
the casing shall not be higher than 50°C or lower than 0°C (e.g., at the air-conditioning system);
 The material and thickness of insulation of individual equipment shall comply with the requirements
set out in Regulation 151/2001;
 Inflammable material shall be used for insulation;
 In the case of a pipe inside diameter less than DN 40, it is necessary to use “flexipan” or similar
material for the thermal insulation coverage;
 The insulation surface shall be protected against any damage. Pipe sleeves and removable
insulations shall be made of galvanized sheeting. Thermal insulation, including accompanying
pipelines and fittings, shall be covered with galvanized sheeting with a thickness of no less than 0.8
mm. Removable insulation sections shall be covered with galvanized sheet bushings. The
galvanized sheeting shall be provided with relevant coat structures;
 Locations requiring access due to operation and maintenance shall be equipped with removable
insulation bushes, (e.g., fittings, etc.);
 The supports and hangers must be provided with insulating insertion pieces.
Insulation specification – The Bidder shall specify characteristic properties of insulation, approximate
insulated areas and weight for insulation against heat loss.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
7.4.3.9
PAGE No.:
106
TOTAL PAGES:
118
Assembly and Disassembly
The piping shall be built by means of the so-called clean assembly applying the method of welding in
protective atmosphere of gases (i.e., MIG, MAG, TIG etc.). The assembly procedures shall be developed and
included in the Quality Project and shall become binding after mutual discussions.
The disassembly shall mean any activities aimed at removing any existing equipment, such as removal of
fittings, pipelines, steel structures, wells, cables, foundations, insulations and other non-functional parts. In the
event that any flange fitting is removed, it is also necessary to remove the flange from the pipeline. The
following principles shall apply to any disassembly:
Mechanical – In general, the disassembly of mechanical equipment shall be carried out comprehensively,
which means that it is necessary to remove the relevant equipment itself, all its potential outlets, pipelines,
including supporting and fixing elements.
Electrical - In general, the disassembly of electrical equipment shall be carried out comprehensively, which
means that it is necessary to remove the relevant equipment itself, control circuit equipment, cable lines,
including supporting and fixing elements. It is necessary to remove any electrical equipment related to the
removed mechanical equipment, and in addition, electrical equipment that is not related to any mechanical
equipment dismantling and needs to be reconstructed.
I & CS - In general, the disassembly of I & CS equipment shall be carried out comprehensively, which means
that it is necessary to remove the relevant power supply system, equipment itself, including all its parts, all
potential outlets, cable lines, including supporting and fixing elements. It is necessary to remove any I & CS
equipment related to the removed mechanical equipment, and in addition, I & CS equipment that is not related
to any mechanical equipment dismantling and needs to be reconstructed.
Activities related to the disassembly will not be specified in greater detail in the text.
7.4.3.10 Refurbishment
The refurbishment aims at putting the equipment back into original state corresponding to technical conditions
for the given use.
7.4.3.11 Welding
The welding shall be carried out under the applicable standards. Any activities related to the welding shall be
performed in compliance with the Work Procedure “ŘS – PP 4.9/01” (Quality Assurance in Welding in Dalkia‚
Česká republika, a.s.). Before any welding work is performed, the required documentation specified in the said
Word Procedure shall be delivered.
7.4.3.12 List of Equipment
The List of Equipment shall be part of the design, and for each equipment, it shall specify the following data:








Center:
Order No.:
item number;
name;
number of pieces (in service and redundant);
basic structural material;
total weight, and where necessary, the weight of the heaviest piece is to be specified;
external dimension;
input power;
Moreover, it is necessary to state whether the equipment will be delivered in parts or en bloc.
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
107
TOTAL PAGES:
118
The Employer requires that it is provided with basic technical data on the delivered equipment as per the
process equipment design in the form of technical specifications.
7.4.3.13 Main Data on Equipment
Moreover, the design specifications shall particularly specify:
 type, sort;
 manufacturer;
 main dimensions;
 operating parameters;
 design pressure (overpressure), design temperature;
 pressure drop (initial, maximum, optimum);
 material (of individual parts), corrosion allowance, thickness;
 insulation, thickness, heat transfer coefficient.
7.4.3.14 Schematic Drawings
The Employer requires the Bidder to deliver preliminary or typical schematic drawings of the applied design
along with the bid.
7.4.4.
Requirements for Heavy-Current Equipment
7.4.4.1
Requirements for Equipment from the Perspective of AC, DC Supply
AC 6 kV power supply: 3 ~ , 50Hz, 6kV/IT without compensation. Ensured by means of two 110/6.3 kV
transformers with automatic standby with a duration of the dead pause of up to one second.
AC 400/230 V power supply:
Original distribution lines: 3+PEN, 50 Hz, 400/230V TN-C
Distribution lines after major overhaul or reconstruction: 3+PEN, PE, N, 50 Hz, 230/400V TN-C-S
Any important equipment and drives supplied with 230/400V alternating voltage must be protected against a
short-term voltage loss of up to two seconds with activated backup in superior substations.
DC 220 V power supply:
220V DC IT with ground fault signal.
To identify any ground fault, a short-term disconnection of the individual sections shall be carried out. The
equipment must be designed so as to allow this handling method without any other intervention in the
equipment. The automatic standby system on the switchgear must be set up selectively with respect to the
standby times of superior switchgears. The automatic standby system of the drives must be blocked against
stand-in in the event that supply voltage is lost. The offtake amount and connection point must always be
agreed with the responsible employees of the Power Center of the Třebovice Power Plant. Feeding any other
voltage levels is to be ensured by separate supply units.
For the same outlets, we require that the following characteristics are uniform:
 connection;
 relay location;
 connection of RTU unit inlets;
 object generation;
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report



7.4.4.2
PAGE No.:
108
TOTAL PAGES:
118
use contacts so that no inappropriate or misleading report is released in the event of
control voltage loss;
relays connected in the relay card circuit shall be provided with a protective diode
parallel-connected to coil;
any binary states shall be introduced in two bits into MD.
Requirements for Switchgears, Terminal and Control Boxes
Switchgear type – The switchgears for electrical instruments and equipment and I & CS must have modular
design, which shall allow the switchgear equipment to be supplemented with original accessories (holders,
reinforcements, etc.).
Switchgear door - The switchgear door must be provided with a pocket for documentation, which shall list
switching and isolating elements, matched with the identification of the individual circuits. The door shall be
equipped with door springs with a tipping handle with a 5 mm double-spiked key. If a control system is installed
in any switchgear, then we require that the door is equipped with a glass hole to see the control system cards.
If any instruments are built in the door, then they must be provided with permanent identification – best by
carved labels to describe their function - and they must comply with the description set forth in the
documentation.
Switchgear protection - must comply with the basic characteristics, specified under the Czech National
Standard ČSN 33 2000-5-51 ed. 3, and at least, it must comply with IP 54 / IP 00 in electrical plants and IP 54
/ IP20 outside electrical plants. The applied anticorrosive protection of the switchgear must also correspond
thereto.
Switchgear identification – switchgear identification (including local designation). The identification of electrical
and I & CS circuits shall be carried out as per the coding system used in the Třebovice Power Plant. Both the
switchgears and cabinets must be provided with self-adhesive tape signs (Flash! Attention! Electrical
Equipment! Do not extinguish with water or foam fire extinguishers!).
Cabling connection - the switchgears must be equipped with sliding sheets to allow cable entry into the
switchgear, (no cable bushings may be used). Cables must be terminated in the switchgear from below. The
cable passage must be sealed against dust and moisture. Cables must be fixed to the support strip by means
of clamps, e.g., SONAP type, etc. Cables must be terminated on the terminal board in the lower section of the
switchgear and must not lead as far the instrument terminals.
Plastic switchgears – switchgear with a dimension of up to 800 x 600 mm must be all-plastic. The local control
boxes of all-plastic design shall be used for local controls. Cable bushings used for the local control boxes
shall be self-sliding.
For connecting the servo-motors to the control or terminal boxes, it is necessary to use flexible lead-in wires
ended with plugs provided with protective hoses, and used bushings shall correspond thereto.
7.4.4.3
Instrumentation of Switchgears, Terminal and Control Boxes
Instrument location - The instruments shall be installed in rows and shall be mounted from the left side so that
it shall be possible to supplement instruments on the right side. Drive connection to the busbars – each of the
drives shall be separately, exceptionally in integrated technological parts, connected to busbars through fuse
switch disconnectors, (this shall be designed during the Design Documentation development upon agreement
with the Customer).
Instrument installation - the used switchgear instruments must be installed on the DIN TS 35 strip. Contactors
for switching the drives, overcurrent thermal protections, fuse switch disconnectors, auxiliary relays, circuit
breakers and motor starts for the drive protection shall be used from well-proven suppliers. Motors with power
above 20kW shall be protected through instrument current transformers x/1A. The Customer prefers the
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
109
TOTAL PAGES:
118
delivery of instruments unified with the instruments already installed at the other process equipment units of
the Třebovice Power Plant.
Terminal blocks – In the switchgears, it is necessary to use original endings of terminal boxes, terminal and
terminal board signage. The individual terminals and terminal blocks shall be separated by original partitions.
Fuse terminal blocks - shall be used with LED signaling.
Conductor identification - The switchgears and control boxes must include target identification. The conductor
signage shall be made in the form of identification spaghetti insulation, which shall be machine-signed and
shall be permanent. The terminals of stranded conductors shall be made as molded or possibly, soldered
terminals.
Color design of conductors - under the Czech National Standards (ČSN), the interconnection of analogue
signals from the terminal board to the control system cards shall be made by means of yellow conductors.
Conductor placement - Interconnection of control and power circuits in the switchgear shall solely be made by
stranded conductors. Such conductors shall be placed in perforated plastic ducts.
Controls and indicators - shall have an assembly hole diameter of 22 mm and the color signage shall be made
under Czech National Standard ČSN EN 60073 ed.2.
Cable bushings - If cable bushings are used, e.g., for plastic switchgears, we require that plastic, self-sliding
bushings are used.
Control System Cards - All signals from all cards and redundant sections shall be terminated on the terminal
board. Digital outputs shall solely be interconnected through the cut-out relay.
7.4.4.4
Requirements for Motors
There shall be three-phase, asynchronous motors, provided with short-circuit armature, higher efficiency,
supply voltage of 0.4 kV or 6 kV. There shall be rolling bearings (in the case of motors with power above 7.5
kW, there shall be a possibility of additional lubrication), and the motors shall be air-cooled. The insulation
system of the stator winding shall be at least of Thermal Class F and shall be provided with IP protection as
required by the determination of external influences. The motors powered by frequency converters shall be
adapted to power supply from the frequency converters. In the case of high power motors, it is necessary to
carry out an assessment of motor adjustment and foundation to eliminate bearing currents and shaft tension.
Selected motors, as defined by the design, shall be equipped with thermistors to monitor the winding
temperature. Motors with an input power of above 35 kW shall be connected through stranded conductors to
the busbar by means of transition boxes located close to the motor.
7.4.4.5
Requirements for Frequency Converters
The frequency converters shall be equipped with motor and network chokes. The whole installed equipment
shall meet the electromagnetic compatibility conditions under IEC, ČSN. If the frequency converters are not
included in the process equipment, they shall be situated in new 0.4 kV switchgears. The frequency converter
speed range shall be defined so as to be possible to operate the drive at 50 HZ in the case of the frequency
converter failure however provided that this is allowed by the process equipment.
7.4.4.6
Control System Links to Heavy-Current Equipment
We require that the links are implemented by means of transformation relays located in the switchgear
cabinets. The relays shall ensure transforming commands and check back indications of the actuator status
between the control system and power switchgear.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
7.4.4.7
PAGE No.:
110
TOTAL PAGES:
118
Cabling and Cable Trays
The individual drives, electrical equipment and I & CS shall be interconnected by copper, all-plastic CYKY
cables. Shielded copper, all-plastic JYTY or JQTQ cables shall be used for I & CS. A cable with Al conductors
may be used for lead-in.
In the switchgear or box, the cables must be connected to isolating terminals (in the section of lead-in holes),
and must not be directly connected to the terminals of instruments installed in the switchgear. I & CS cables
shall preferably run in cable ducts and armored galvanized conduits separately from power cables. If a
communication cable is used, we require that it runs in a separate metal cable duct and is color distinguished
(yellow). A cable designed for potential power supply for the transducer may be placed in a duct.
The power cables shall run on aluminum cable racks. At the ends of cables, there shall be cable labels,
indicating the cable number, cable start and end point and cable type. Outdoor cable lines must be
implemented by means of galvanized supporting elements.
In the event that the cables are connected to the existing equipment, it is necessary to reconstruct the fire
protected entries and also make new fire protected entries on the interface of the fire compartments in the
case of newly installed switchgears and cables.
7.4.5.
Requirements for ACS and I & CS
7.4.5.1
Field Instrumentation
The Customer prefers the delivery of instruments unified with the instruments already installed within the other
process equipment in the Třebovice Power Plant.
Output signals from all instruments must be basically 4 - 20 mA.
If power supply is necessary (transducers, separators,…), then 230 VAC or 24 VDC is required.
New measuring equipment shall be installed so as to be easily accessible by maintenance personnel (i.e., up
to a height of 2.5 m with a possibility of attaching a ladder); otherwise access platforms, walkways and ladders
shall be installed for measurement within the work.
Pressure Measurement
 Pressure measurement units: Pa, kPa, MPa;
 Connection of pressure measuring instruments shall solely be M20x1.5 (pressure sensor, pressure gauge,
pressure switch etc.);
 For the connection, it is necessary to use manometric testing valves of AN series with a control sampling
point (left thread) made of relevant material;
 The valve shall be mechanically attached so that its position shall be convenient to the measured medium,
the valve can be dismantled without any problem and the sensor display shall be legible;
 It is necessary to use robust stainless pressure gauges with attenuation (glycerin filling);
 At a pressure greater than 1MPa, welded joints shall always be used on pulse piping, (self-cutting rings are
not allowed).
 The overall accuracy class of the sensor shall be at least up to 0.5%.
Pressure Difference Measurement
 Pressure difference measurement units: Pa, kPa.
 The unit shall be connected by means of an M20x1.5 screw cap with an area for sealing.
 The valve shall be mechanically attached so that its position shall be convenient to the measured medium,
the valve can be dismantled without any problem and the sensor display shall be legible;
 There shall be five-way separation valve sets;
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
111
TOTAL PAGES:
118
 The sensors shall contain chambers with deaeration valves;
 The overall accuracy class of the sensor shall be at least up to 0.25%.
Temperature Measurement
 Temperature measurement unit: °C;
 The well sensor must have M20x1.5 screwing; screwing in the case of design with well: M27x2;
 Pt100 temperature sensors shall have A accuracy class;
 In the case of the thermometer where the medium temperature is above 150°C, we require the transducer to
be installed outside the temperature sensor head to eliminate any overheating of the transducer;
 The temperature transducer generating a unified current signal must be provided with galvanic separation;
 Thermocouples shall be insulated from the casing.
Flow Measurement
 Flow measurement units: t/h, m3/h with correction for the temperature and pressure of measured medium;
 Throttling devices, such as orifice gauges and nozzles, must be provided with extraction shut-off valves;
 It is necessary to adhere to the outlet position as per the type of measured medium;
 The orifice gauges must be designed with a lock, including lock counterflanges;
 If an induction or ultrasonic flow meter is used for the flow or heat measurement, we require that it is fitted
with an evaluation unit equipped with 4-20mA current outputs and serial interface.
Level (Volume) Measurement
 Flow measurement units: m, (volume - m3);
 Vibration sensors shall be preferably used for monitoring emergencies and limit conditions;
 Radars sensors shall be delivered with relevant set-up and diagnostics SW.
Other Measurements
 We require that the conductivity measuring equipment is fitted with a transparent cation exchange tube.
 Heat quantity:
GJ
 Thermal output:
GJ/h; MW
 Electrical output:
kW, MW, kWh, MWh
7.4.5.2
Servomotors of Electrically Controlled Fittings
 The control servomotors shall be used with a 4 - 20 mA position output signal.
 Control may be continuous (4 - 20 mA signal) or discontinuous.
 The control servomotors shall be equipped with a position sensor.
 The electric shut-off fittings shall be equipped with a local control box containing a LOCAL / REMOTE control
switch, OPEN and CLOSE push-buttons and OPEN / CLOSED signaling system. At an accessible location,
a manual control of the electric fitting may be directly installed on the drive and no local control box needs to
be installed.
 Servomotor connections to the control or terminal boxes shall be implemented by means of flexible lead-in
wires with a length so that it shall be possible to remove the servomotor with cables from the fitting and lay it
down to an adjacent platform however provided that its length shall be no less than 2 m.
 We prefer servomotors with plastic lubricant of the switchgear.
7.4.5.3
Cabling and Cable Trays
 Power interconnections of individual drives and I & CS shall be implemented by means of copper all-plastic
CYKY cables.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
112
TOTAL PAGES:
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 I & CS instruments shall use shielded copper all-plastic JYTY or JQTQ cabling.
 The camera image transmission system shall use coaxial cables with solid-core conductors and a strand
cross section of 1mm2.
 In the switchgear or box, the cables must be connected to isolating terminals (in the section of lead-in holes),
and must not be directly connected to the terminals of instruments, installed in the switchgear.
 At both the ends, the cables shall be provided with wire markers indicating the cable number, cable start and
end point and cable type.
 I & CS cables shall preferably run in cable ducts and armored conduits separately from power cables.
 Power cables shall run on cable trays.
 If a communication cable is used, we require that it runs in a separate metal cable duct, and is color
distinguished (yellow). A cable, designed for potential power supply for the transducer, may be placed in the
duct.
 Outdoor cable lines must be implemented by means of galvanized supporting elements.
 In the event that the cables are connected to the existing equipment, it is necessary to reconstruct the fire
protected entries and also make new fire protected entries on the interface of the fire compartments in the
case of newly installed switchgears and cables.
7.4.5.4
Requirements for Switchgears, Terminal and Control Boxes
 The switchgears for electrical instruments and equipment and I & CS must have modular design, which shall
allow the switchgear equipment to be supplemented with original accessories (holders, reinforcements, etc.).
 The switchgear door must be provided with a pocket for documentation, which shall list switching and
isolating elements, matched with the identification of the individual circuits.
 The door shall be equipped with door springs equipped with a double-spiked tipping handle.
 If any instruments are built in the door, then they must be provided with permanent identification – best by
carved labels to describe their function - and they must comply with the description, set forth in the
documentation.
 The switchgear protection system must comply with the basic characteristics specified under Standard 33
2000-3, however it shall be at least IP 54 / IP 20. The applied anti-corrosion protection system of the
switchgears must also correspond thereto.
 Switchgear identification – the identification of the switchgears, power circuits and I & CS shall be carried out
as per the Třebovice Power Plant coding system.
 Both the switchgears and cabinets must be provided with self-adhesive tape signs (Flash! Attention!
Electrical Equipment! Do not extinguish with water or foam fire extinguishers!).
 Cable connection - The switchgears must be equipped with sliding sheets to allow cable entries or must run
through cable bushings. The cable passage must be sealed against dust and moisture. Cables must be fixed
to the support strip by means of clamps, etc. Cables must be terminated on the terminal board in the lower
section of the switchgear and must not lead as far the instrument terminals, (except for ACS cabling).
 Local control boxes of all-plastic design with relevant protection shall be used for local control. Cable
bushings of the local control boxes shall be all-plastic and self-sliding.
7.4.5.5
Instrumentation of Switchgears, Terminal and Control Boxes
 Instrument location - The instruments shall be installed in rows and shall be mounted from the left side so
that it shall be possible to supplement instruments on the right side.
 The used switchgear instruments must be installed on the DIN TS 35 strip.
 If the drives are protected by fuses and overcurrent thermal protection, we require that fuse switch
disconnectors are used.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
113
TOTAL PAGES:
118
 Auxiliary relay - For the voltage of 230 V/AC and 24V/DC, we require a robust relay with a possibility of
mutual simulation of the relay conditions and module with protective diode and LED indication for relays
excited from output cards. We prefer using relays of PT series.
 Terminal blocks – In the switchgear, it is necessary to use terminals with a possibility of mutual
interconnection and partitions against potential short-circuit during work on the terminal block. It is necessary
to use original endings of terminal boxes, terminal and terminal board signage.
 Fuse terminal blocks – shall be used with LED signaling.
 Conductor identification - The switchgears and control boxes must include target identification. The
conductor markers shall be carried out by carved labels, which shall contain a permanent mechanical
description.
 Terminals of stranded conductors shall be molded.
 Conductor placement – the interconnection of control and power circuits in the switchgear shall solely be
carried out by means of stranded conductors. It is necessary to use a solid-core conductor for I & CS and
ACS switchgears. Such conductors shall be laid in perforated plastic ducts.
 Controls and indicators – the diameter of their assembly hole shall be 22 mm and the color signage shall be
as proposed by Czech National Standard ČSN 330170.
 We require that plastic, self-sliding bushings are used.
7.4.5.6
ACS, Electrical System and I & CS Link Design
 Control system cards - All signals from all cards and redundant sections shall be terminated on the terminal
board. Digital outputs shall solely be interconnected through the cut-out relay whose module shall contain a
protective diode and LED indication.
 Motors (for example, pump motors) shall be controlled as required by the process equipment (e.g.,
minimum, maximum level, flow rate) with an option of local control on site or automatic control from the
control system. The following conditions shall be introduced into the control system: READY, LOCAL /
REMOTE switch, ON, OFF and SWITCH ON / OFF commands shall be transmitted.
 Electric drives of the shut-off fittings shall be controlled locally on site or remotely. The remote control from
the control system shall be automatic or manual. The following conditions shall be introduced into the control
system: READY, LOCAL / REMOTE switch, CLOSED, OPEN, and CLOSE and OPEN commands shall be
transmitted.
 Electric drives of the control fittings shall be remote-controlled automatically from the control system or
controlled with a possibility of entering the position expressed as percentage. The following conditions shall
be introduced into the control system: EL. READY (this means an electric readiness, i.e., supply voltage
presence) and POSITION, and CLOSE and OPEN commands or CONTROL SIGNAL (in the case of a drive
provided with its own controller) shall be transmitted. In the event that the drive is provided with its own
diagnostics with the transmission of “uncontrollable drive” signal, then such a signal shall be transmitted
separately to the control system binary signal and shall be designated as DRIVE READY.
 All protections, technological links, start-up or shut-down sequence of all drives must be secured in the
control software in the process station. The visualization SW shall only display, transmit commands and
archive alarms and data. In the case of an outage of the Operator Station with the visualization SW, no
change in the control SW may occur.
Power Supply for Control Station:
 The control system process station (s) shall receive power supply from and backed up through three power
supply lines. The process unit shall be supplied with 24V DC. The first 220V AC power supply line shall
come from the motor switchgear of relevant process equipment and the second 230V AC power supply line
shall come from Switchgear RM-ŘS1, which is located under the Electrical Control Room. These two power
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
PAGE No.:
114
TOTAL PAGES:
118
supply lines shall be designed through a three-position switch. The middle position shall be a rest condition.
The third power supply line shall be a 24VDC battery with a designed capacity so as to secure the system
running for a period of no less than 30 minutes in the event of any 230VAC power supply outage. During the
presence of 230V AC power supply, the battery shall be automatically charged. The system shall be
designed so that power supply for all the I/O units shall not be interrupted in the case of any AC voltage
outage. Diagnostics of the power supply system – presence of both 230V AC, input voltage for PLC, battery
condition etc. - shall be introduced into the I/O inlets of a relevant PLC.
 Power supply for the Operator Stations shall be provided at 230 V AC level and shall be backed up by the
UPC unit, which shall ensure the Operator Station running for a period of no less than 30 minutes in the case
of any voltage loss.
Control System Links to I & CS:
 Binary inputs – it is necessary to use signals as voltage-free contacts, and the contacts shall be directly
powered by the control system card.
 Analogue current inputs and outputs – always 4-20mA, serial interface: RS485, RS232I.
 Analogue inputs – shall always be powered by the control system (except for instruments that do not allow
passive connection and their current signal is always active). The analogue signal shall always be 4-20mA. It
is necessary to meet the principle that all signals from the sensors and transducers are concentrated into
coupling boxes, and from there, they shall be transmitted through multi-strand cables to the CS inlet cards.
 Control servodrives – we prefer using servodrives with a two-phase motor equipped with an electromagnetic
brake, where such servodrives shall continue to be in their immediate position in the case of power outage.
These servodrives shall be equipped with CPT capacity position transmitters. Where appropriate from the
technological process perspective, we require servodrives with constant speed. These drives shall be
controlled by means of 4-20mA current signal, which shall act, after modification, directly on the contactors
towards opening or closing.
Control System Links to Heavy-Current Equipment:
 We require that the connection is implemented by means of transformation relays situated in the power
switchgears, which shall ensure the transformation of commands and check back indications on the actuator
condition between the 24V control system and power switchgear.
 We expect a relay provided with mechanical condition indication and mechanical security of the switched
condition (by an integrated lever) to be used for 230V/AC and 24V/DC voltage. It is necessary to use a
signaling module with protective diode for the relay switched from the control system cards.
7.4.5.7
Communicators and Controls
The communicators and controls shall be of a suitable type for ensuring that the controlled process equipment
continues to be transparent. For separate communicators, it is possible to use LED indicators.
Communicator Coding:
Color
Meaning
RED
Hazard
YELLOW
Emergency
GREEN
Normal Condition
WHITE
Normal Condition
(Non-Illuminated) Control Coding:
Color
Meaning
RED
Hazard
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
Equipment Conditions
Hazardous (breakdown) conditions
Extraordinary conditions
Equipment switched on
Equipment switched off
Equipment Conditions
Emergency shut-down (trip)
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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GREEN
WHITE
BLACK
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Switching-on control
Start (equipment switched on)
Switching-off control
Stop (equipment switched off)
Control providing impulse during the force action
The designer must unconditionally respect this coding of controls and communicators.
7.4.5.8
Obligations of Foreign Organizations under Metrology Rules of DALKIA
ČESKÁ REPUBLIKA
 An external organization must document the link to the state etalons (e.g., through a Verification Sheet,
Verification Mark, Verification Sheet) for all meters used during its activities for DALKIA ČESKÁ
REPUBLIKA.
 Any organization performing the assembly, servicing or repairs of meters for DALKIA ČESKÁ REPUBLIKA
shall submit a “Registration Certificate”.
 Any organization performing the assembly and maintenance of meters for any measuring system shall be
obliged to ensure that a metrologic test is carried out for all components of the measuring chains.
 Any organization delivering DALKIA ČESKÁ REPUBLIKA meters that are included in the process equipment
shall be obliged to submit the Meter Administrator the following documents before handing any meter over to
continuous operation:
- Primary Verification Document for specified meters;
- Calibration Sheet for any other meters.
 Any organization, delivering DALKIA ČESKÁ REPUBLIKA instruments requiring operation knowledge (i.e.,
status meters) or calibration, shall be obliged to train specified personnel. The said organization shall issue
such personnel an Operator Qualification Certificate for the operation of such instruments, including their
calibration.
 Any organization carrying out servicing activities for meters or equipment that also includes meters (e.g., gas
analyzers) shall submit an authorization, issued by the manufacturer of the given equipment, manufacturer
of metering equipment, and if need be, also a permit issued by the State Technical Supervision, Czech
Environmental Inspectorate for its maintenance and adjustment.
7.4.6.
Requirements for Civil Engineering Part
7.4.6.1
Concrete and Masonry Structures
All passages through the structures shall be properly repaired and painted as per the existing color shade.
Concreted entries for the old process equipment shall be linked to the existing structures. New partitions shall
be plastered and painted. In the case of any civil engineering intervention in the building supporting elements,
it is necessary to carry out a static assessment of the relevant area.
Structures exposed to any aggressive environment shall be provided with a protective coat layer. The floors
shall be repaired and provided with anti-dust surface finish.
7.4.6.2
Plastering and Painting
The individual passages, brickwork and damaged locations associated with the work performance shall be
repaired, plastered and white painted. The entries through the Boiler House building façade shall be
implemented in rough masonry.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
7.4.6.3
PAGE No.:
116
TOTAL PAGES:
118
Paint System
The supporting steel elements shall be painted in RAL 5024 color shade; building plumbing elements in RAL
5023 color shade; window frames, doors and gates in RAL 5002 color shade; door and gate frames in RAL
3020 color shade; handrails and steel ladders in RAL 1023 color shade.
7.4.6.4
Steel Structures
The existing and new steel structures used for the new process equipment shall be provided with a suitable
paint system. A static calculation shall be submitted for any new supporting steel structures. Platforms,
walkways and staircases shall be provided with signs indicating the steel structure load-carrying capacity
(kg/m2) and load (kN/m2).
7.4.7.
Requirements for Equipment Operation
The equipment shall be designed and manufactured for all-year operation within the number of operating
hours of 8,760 hours/year. Any scheduled outage for routine maintenance shall not be longer than 10 calendar
days per year.
We expect the whole new process equipment operation to be fully automated without any manual intervention
by the operator on site. The operated process equipment shall be checked during walkthroughs twice per
eight-hour shift.
We also expect that sorbent for the desulfurization unit will be brought to the site and desulfurization products
will be removed from the site without the direct participation of Třebovice Power Plant operation personnel.
The new process equipment shall be designed so that both the loading and unloading is carried out by a
representative of the carrier (i.e., vehicle driver) at the site. His performance shall be monitored in the K14
(K13 and K12) Operator Station in the Třebovice Power Plant Control Room. The areas shall also be
monitored by a camera system and images shall be transmitted to the Třebovice Power Plant Control Room.
In its bid, the Bidder shall specify in great detail any manual handling operation, including its cycles, to be
performed directly at the process equipment.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
Desulfurization and Dedusting of Boilers K14, K13, K12
Tender Documentation – Annex 1 – Part 02 Technical Report
7.5.
PAGE No.:
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Expected Sorbent Parameters for Guarantee Testing
Site
Product
Quality
CaO+MgO
of it: MgO
SO2
CO2
Yield
Granulometry
Sieve Residue 0.2 mm
Sieve Residue 0.09 mm
Reactivity T60°C
7.6.
Kotouč Štramberk
white unslaked lime CL 90-Q
under ČSN-EN 459-1
≥ 90.0%
≤ 5.0%
≤ 2.0%
≤ 4.0%
> 26 dm3/10 kg
0.4 %
4.6 %
< 6.5 min
Operating Set and Building Object Coding System
The Bidder shall adhere to the described structure and coding system when describing the process equipment
and specifying the work price in its bid.
Coding Example:
PS 10.04.01/Part 01
PS
XXX
XXX
10 / 04 . 01. / Part 01
aa / bb . cc / Part dd
Letter Coding: PS, DPS, SO or DSO.
PS
- Operating Set: shall be a functionally interconnected set of machines, equipment and
their parts, including assembly, collectively designated for ensuring an individual
technological process;
DPS - Sub-Operating Set: shall be a functionally related part of the Operating Set. The
Operating Set may but need not be structured into Sub-Operating Sets (DPS);
SO
- Building Object: shall be a functionally interconnected set of buildings that are
collectively related from the civil engineering perspective;
DSO - Sub-Building Object: shall be a functionally related part of the Building Object. The
Building Object may but need not be structured into Sub-Building Objects (DSO).
aa
Center:
Order No.:
Numerical code of the Building Unit (SC) to which PS, DPS, SO or DSO belongs.
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08
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SC - The Building Unit shall form a section of the building that has separately received an
Occupancy Permit: it shall be a set of Operating Sets, Building Objects and
Engineering Objects and their parts. For the subject of this work, it shall be Building
Unit 10.
bb
Numerical code of the Operating Set (PS), Building or Engineering Object (SO) in compliance
with (i) PS and SO descriptions provided herein, and (ii) work price specification.
cc
Numerical code of the Sub-Operating Set (DPS), Sub-Building Object (DSO) provided that it is
defined. If it is not defined, no numerical coding shall apply. The numbering and coding shall
be carried out in compliance with (i) PS and SO descriptions provided herein, and (ii) work
price specification.
Part dd
Part of PS, DPS, SO, DSO. The Part of PS or DPS shall mean:
Mechanical Technology Part
Heavy-Current Equipment and Distribution Lines
Instrumentation and Control System
The PS, DPS, SO, DSO Parts are defined in the SO and DSO descriptions.
Center:
Order No.:
ŘS- 4300
ETB11C
File:
Archive Number:
ETB11C_R08_z.DOC Date:
05-12002-08/02 Review:
November 2012
08